diff --git a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
index 6946481..bea3010 100644
--- a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
+++ b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
@@ -75,7 +75,9 @@ public class Gruppen2Controller {
     @RolesAllowed({"ROLE_orga", "ROLE_actuator)"})
     @GetMapping("/createOrga")
     public String createOrga(KeycloakAuthenticationToken token, Model model) {
-        model.addAttribute("account", keyCloakService.createAccountFromPrincipal(token));
+        Account account = keyCloakService.createAccountFromPrincipal(token);
+        model.addAttribute("account", account);
+        model.addAttribute("lectures", groupService.getAllLecturesWithVisibilityPublic());
         return "createOrga";
     }
 
@@ -87,6 +89,7 @@ public class Gruppen2Controller {
                               @RequestParam(value = "visibility", required = false) Boolean visibility,
                               @RequestParam(value = "lecture", required = false) Boolean lecture,
                               @RequestParam("userMaximum") Long userMaximum,
+                              @RequestParam(value = "parent", required = false) Long parent,
                               @RequestParam(value = "file", required = false) MultipartFile file) throws IOException, EventException {
 
         Account account = keyCloakService.createAccountFromPrincipal(token);
@@ -99,9 +102,11 @@ public class Gruppen2Controller {
             }
         }
         visibility = visibility == null;
-        lecture = lecture == null;
+        lecture = lecture != null;
 
-        controllerService.createOrga(account, title, description, visibility, lecture, userMaximum, userList);
+        if (lecture) parent = null;
+
+        controllerService.createOrga(account, title, description, visibility, lecture, userMaximum, parent, userList);
 
         return "redirect:/gruppen2/";
     }
@@ -109,7 +114,9 @@ public class Gruppen2Controller {
     @RolesAllowed({"ROLE_studentin"})
     @GetMapping("/createStudent")
     public String createStudent(KeycloakAuthenticationToken token, Model model) {
-        model.addAttribute("account", keyCloakService.createAccountFromPrincipal(token));
+        Account account = keyCloakService.createAccountFromPrincipal(token);
+        model.addAttribute("account", account);
+        model.addAttribute("lectures", groupService.getAllLecturesWithVisibilityPublic());
         return "createStudent";
     }
 
@@ -119,11 +126,12 @@ public class Gruppen2Controller {
                                  @RequestParam("title") String title,
                                  @RequestParam("description") String description,
                                  @RequestParam(value = "visibility", required = false) Boolean visibility,
-                                 @RequestParam("userMaximum") Long userMaximum) throws EventException {
+                                 @RequestParam("userMaximum") Long userMaximum,
+                                 @RequestParam(value = "parent", required = false) Long parent) throws EventException {
 
         Account account = keyCloakService.createAccountFromPrincipal(token);
         visibility = visibility == null;
-        controllerService.createGroup(account, title, description, visibility, userMaximum);
+        controllerService.createGroup(account, title, description, visibility, userMaximum, parent);
 
         return "redirect:/gruppen2/";
     }
@@ -164,7 +172,14 @@ public class Gruppen2Controller {
         Group group = userService.getGroupById(groupId);
         Account account = keyCloakService.createAccountFromPrincipal(token);
         User user = new User(account.getName(), account.getGivenname(), account.getFamilyname(), account.getEmail());
+        Long parentId = group.getParent();
+        Group parent = new Group();
+        if (parentId != null) {
+            parent = userService.getGroupById(parentId);
+        }
         if (group != null) {
+            model.addAttribute("parentId", parentId);
+            model.addAttribute("parent", parent);
             model.addAttribute("group", group);
             model.addAttribute("roles", group.getRoles());
             model.addAttribute("user", user);
@@ -196,8 +211,15 @@ public class Gruppen2Controller {
     public String showGroupDetailsNoMember(KeycloakAuthenticationToken token, Model model, @RequestParam("id") Long groupId) throws EventException {
         model.addAttribute("account", keyCloakService.createAccountFromPrincipal(token));
         Group group = userService.getGroupById(groupId);
+        Long parentId = group.getParent();
+        Group parent = new Group();
+        if (parentId != null) {
+            parent = userService.getGroupById(parentId);
+        }
         if (group != null && group.getUserMaximum() > group.getMembers().size()) {
             model.addAttribute("group", group);
+            model.addAttribute("parentId", parentId);
+            model.addAttribute("parent", parent);
             return "detailsNoMember";
         }
         throw new GroupNotFoundException(this.getClass().toString());
diff --git a/src/main/java/mops/gruppen2/service/ControllerService.java b/src/main/java/mops/gruppen2/service/ControllerService.java
index d46e708..4d651d4 100644
--- a/src/main/java/mops/gruppen2/service/ControllerService.java
+++ b/src/main/java/mops/gruppen2/service/ControllerService.java
@@ -46,7 +46,7 @@ public class ControllerService {
      * @param title       Gruppentitel
      * @param description Gruppenbeschreibung
      */
-    public void createGroup(Account account, String title, String description, Boolean visibility, Long userMaximum) throws EventException {
+    public void createGroup(Account account, String title, String description, Boolean visibility, Long userMaximum, Long parent) throws EventException {
         Visibility visibility1;
         Long groupId = eventService.checkGroup();
 
@@ -57,7 +57,7 @@ public class ControllerService {
             createInviteLink(groupId);
         }
 
-        CreateGroupEvent createGroupEvent = new CreateGroupEvent(groupId, account.getName(), null, GroupType.SIMPLE, visibility1, userMaximum);
+        CreateGroupEvent createGroupEvent = new CreateGroupEvent(groupId, account.getName(), parent, GroupType.SIMPLE, visibility1, userMaximum);
         eventService.saveEvent(createGroupEvent);
 
         addUser(account, groupId);
@@ -66,7 +66,7 @@ public class ControllerService {
         updateRole(account.getName(), groupId);
     }
 
-    public void createOrga(Account account, String title, String description, Boolean visibility, Boolean lecture, Long maximmum, List<User> users) throws EventException {
+    public void createOrga(Account account, String title, String description, Boolean visibility, Boolean lecture, Long userMaximum, Long parent, List<User> users) throws EventException {
         Visibility visibility1;
         Long groupId = eventService.checkGroup();
 
@@ -78,12 +78,12 @@ public class ControllerService {
 
         GroupType groupType;
         if (lecture) {
-            groupType = GroupType.SIMPLE;
-        } else {
             groupType = GroupType.LECTURE;
+        } else {
+            groupType = GroupType.SIMPLE;
         }
 
-        CreateGroupEvent createGroupEvent = new CreateGroupEvent(groupId, account.getName(), null, groupType, visibility1, maximmum);
+        CreateGroupEvent createGroupEvent = new CreateGroupEvent(groupId, account.getName(), parent, groupType, visibility1, userMaximum);
         eventService.saveEvent(createGroupEvent);
 
         addUser(account, groupId);
diff --git a/src/main/java/mops/gruppen2/service/GroupService.java b/src/main/java/mops/gruppen2/service/GroupService.java
index f7b5d62..fc9362c 100644
--- a/src/main/java/mops/gruppen2/service/GroupService.java
+++ b/src/main/java/mops/gruppen2/service/GroupService.java
@@ -1,6 +1,7 @@
 package mops.gruppen2.service;
 
 import mops.gruppen2.domain.Group;
+import mops.gruppen2.domain.GroupType;
 import mops.gruppen2.domain.User;
 import mops.gruppen2.domain.dto.EventDTO;
 import mops.gruppen2.domain.event.Event;
@@ -96,6 +97,18 @@ public class GroupService {
         return removeUserGroups(visibleGroups, newGroups);
     }
 
+    public List<Group> getAllLecturesWithVisibilityPublic() throws EventException {
+        List<Event> eventsVisible = eventService.translateEventDTOs(eventRepository.findAllEventsOfGroups(eventRepository.findGroup_idsWhereVisibility(Boolean.TRUE)));
+        List<Group> visibleGroups = projectEventList(eventsVisible);
+        List<Group> visibleLectures = new ArrayList<>();
+        for (Group group : visibleGroups) {
+            if (group.getType().equals(GroupType.LECTURE)) {
+                visibleLectures.add(group);
+            }
+        }
+        return visibleLectures;
+    }
+
 
     /**
      * Filtert alle öffentliche Gruppen nach dem Suchbegriff und gibt diese als Liste von Gruppen zurück.
diff --git a/src/main/resources/templates/createOrga.html b/src/main/resources/templates/createOrga.html
index 35b06a9..d06692a 100644
--- a/src/main/resources/templates/createOrga.html
+++ b/src/main/resources/templates/createOrga.html
@@ -67,15 +67,12 @@
                                    type="checkbox">
                             <label class="custom-control-label" for="lecture">Veranstaltung</label>
                         </div>
-                        <div class="form-group">
-                            <label for="sel1"></label>
-                            <select class="form-control" id="sel1">
-                                <option disabled selected="true">--Bitte Veranstaltung auswählen--
+                        <div class="form-group" id="lectureParent">
+                            <label for="parent"></label>
+                            <select class="form-control" id="parent" name="parent">
+                                <option disabled selected="true">--Bitte Veranstaltung auswählen--</option>
+                                <option th:each="lecture : ${lectures}" th:name="parent" th:value="${lecture.getId()}" th:text="${lecture.getTitle()}">
                                 </option>
-                                <option>1</option>
-                                <option>2</option>
-                                <option>3</option>
-                                <option>4</option>
                             </select>
                         </div>
                         <div class="form-group pt-4">
@@ -107,6 +104,13 @@
             var fileName = $(this).val().split("\\").pop();
             $(this).siblings(".custom-file-label").addClass("selected").html(fileName);
         });
+
+        // Collapsing lectureParent if lecture is checked
+        $(document).ready(function () {
+            $('#lecture').change(function () {
+                $('#lectureParent').fadeToggle();
+            });
+        });
     </script>
 </main>
 </body>
diff --git a/src/main/resources/templates/createStudent.html b/src/main/resources/templates/createStudent.html
index 90777bc..ab750ea 100644
--- a/src/main/resources/templates/createStudent.html
+++ b/src/main/resources/templates/createStudent.html
@@ -57,15 +57,12 @@
                             <label class="custom-control-label" for="visibility">Private
                                 Gruppe</label>
                         </div>
-                        <div class="form-group">
-                            <label for="sel1"></label>
-                            <select class="form-control" id="sel1">
-                                <option disabled selected="true">--Bitte Veranstaltung auswählen--
+                        <div class="form-group" id="lectureParent">
+                            <label for="parent"></label>
+                            <select class="form-control" id="parent" name="parent">
+                                <option disabled selected="true">--Bitte Veranstaltung auswählen--</option>
+                                <option th:each="lecture : ${lectures}" th:name="parent" th:value="${lecture.getId()}" th:text="${lecture.getTitle()}">
                                 </option>
-                                <option>1</option>
-                                <option>2</option>
-                                <option>3</option>
-                                <option>4</option>
                             </select>
                         </div>
                         <div class="form-group pt-4">
diff --git a/src/main/resources/templates/detailsMember.html b/src/main/resources/templates/detailsMember.html
index 5d833de..ec34e6a 100644
--- a/src/main/resources/templates/detailsMember.html
+++ b/src/main/resources/templates/detailsMember.html
@@ -39,7 +39,9 @@
                     <span class="badge badge-pill badge-primary"
                           th:if="${group.getVisibility() == group.getVisibility().PUBLIC}">Öffentliche Gruppe</span>
                     <span class="badge badge-pill badge-success" style="background: lightseagreen"
-                          th:if='${group.getType() == group.getType().LECTURE}'> Veranstaltung</span>
+                          th:if='${group.getType() == group.getType().LECTURE}'>Veranstaltung</span>
+                    <span class="badge badge-pill badge-info" style="background: mediumorchid"
+                          th:text="${parent.getTitle()}">Parent</span>
                 </h3>
                 <br>
                 <div class="shadow-sm p-4" style="background: white">
diff --git a/src/main/resources/templates/detailsNoMember.html b/src/main/resources/templates/detailsNoMember.html
index ece315e..be65b7f 100644
--- a/src/main/resources/templates/detailsNoMember.html
+++ b/src/main/resources/templates/detailsNoMember.html
@@ -41,6 +41,8 @@
                         <span class="badge badge-pill badge-success"
                               style="background: lightseagreen"
                               th:if='${group.getType() == group.getType().LECTURE}'> Veranstaltung</span>
+                        <span class="badge badge-pill badge-info" style="background: mediumorchid"
+                              th:text="${parent.getTitle()}">Parent</span>
                     </h3>
                     <div class="shadow-sm p-4" style="background: white">
                         <p style="overflow-wrap: break-word"