diff --git a/apps/app/src/lib/api/api.gen.ts b/apps/app/src/lib/api/api.gen.ts
index a72dae2..811b62f 100644
--- a/apps/app/src/lib/api/api.gen.ts
+++ b/apps/app/src/lib/api/api.gen.ts
@@ -531,6 +531,17 @@ export interface components {
             could_make_it?: boolean | null;
         };
         Admin: {
+            id?: number;
+            first_name?: string;
+            adminSince?: number;
+            last_name?: string;
+            EndId?: number;
+            EndElementId?: string;
+            Props?: {
+                added?: number;
+            };
+        };
+        AdminRelationship: {
             Id?: number;
             Type?: string;
             StartId?: number;
@@ -1670,7 +1681,7 @@ export interface operations {
                 };
                 content: {
                     "application/json": {
-                        admins?: components["schemas"]["OptimizedPersonNode"][];
+                        admins?: components["schemas"]["Admin"][];
                     };
                 };
             };
@@ -1729,7 +1740,7 @@ export interface operations {
                     [name: string]: unknown;
                 };
                 content: {
-                    "application/json": components["schemas"]["Admin"];
+                    "application/json": components["schemas"]["AdminRelationship"];
                 };
             };
             /** @description Bad request */
@@ -1787,7 +1798,7 @@ export interface operations {
                     [name: string]: unknown;
                 };
                 content: {
-                    "application/json": components["schemas"]["Admin"];
+                    "application/json": components["schemas"]["AdminRelationship"];
                 };
             };
             /** @description Bad request */
@@ -1903,7 +1914,7 @@ export interface operations {
                 };
                 content: {
                     "application/json": {
-                        admins?: components["schemas"]["OptimizedPersonNode"][];
+                        admins?: components["schemas"]["Admin"][];
                     };
                 };
             };
diff --git a/apps/app/src/routes/login/google/callback/+page.server.ts b/apps/app/src/routes/login/google/callback/+page.server.ts
index 3e90a5f..2f70597 100644
--- a/apps/app/src/routes/login/google/callback/+page.server.ts
+++ b/apps/app/src/routes/login/google/callback/+page.server.ts
@@ -12,7 +12,8 @@ import {
 	mothers_first_name,
 	mothers_last_name,
 	born,
-	failed_to_create_user
+	failed_to_create_user,
+	biological_sex
 } from '$lib/paraglide/messages';
 
 import type { PageServerLoad, Actions, RequestEvent } from './$types';
@@ -154,6 +155,20 @@ async function register(event: RequestEvent) {
 			})
 		});
 	}
+
+	const bbiological_sex = data.get('biological_sex');
+	if (bbiological_sex === null || bbiological_sex === '') {
+		return fail(400, {
+			message: missing_field({
+				field: biological_sex()
+			})
+		});
+	} else if (!['male', 'female', 'intersex', 'unknown', 'other'].includes(bbiological_sex.toString())) {
+		return fail(400, {
+			message: `Invalid value for biological_sex. Must be one of "male", "female", "intersex", "unknown", or "other".`
+		});
+	}
+
 	const mothers_first_name_f = data.get('mothers_first_name');
 	if (mothers_first_name_f === null || mothers_first_name_f === '') {
 		return fail(400, {
@@ -179,6 +194,7 @@ async function register(event: RequestEvent) {
 		born: parsed_date.toISOString().split('T')[0],
 		mothers_first_name: mothers_first_name_f as string,
 		mothers_last_name: mothers_last_name_f as string,
+		biological_sex: bbiological_sex as components['schemas']['PersonRegistration']['biological_sex'],
 		limit: StorageLimit
 	};
 
diff --git a/apps/app/src/routes/login/google/callback/+page.svelte b/apps/app/src/routes/login/google/callback/+page.svelte
index 111b24e..e059ec6 100644
--- a/apps/app/src/routes/login/google/callback/+page.svelte
+++ b/apps/app/src/routes/login/google/callback/+page.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-	import type { PageProps } from './$types';
+	import type { PageData } from './$types';
 	import {
 		register,
 		title,
@@ -11,12 +11,24 @@
 		mothers_last_name,
 		last_name,
 		first_name,
-		email
+		email,
+		biological_sex,
+		male,
+		female,
+		other
 	} from '$lib/paraglide/messages';
 	import { onMount } from 'svelte';
 	import { enhance } from '$app/forms';
 	import FamilyTree from '../../highresolution_icon_no_background_croped.png';
-	let { data, form }: PageProps = $props();
+	let {
+		data,
+		form
+	}: {
+		data: PageData;
+		form: {
+			message: string;
+		};
+	} = $props();
 
 	let birth_date: HTMLInputElement;
 	let birth_date_value: HTMLInputElement;
@@ -121,6 +133,17 @@
 							bind:this={birth_date}
 						/>
 						<input type="text" class="hidden" name="birth_date" bind:this={birth_date_value} />
+						<label class="fieldset-label" for="biological_sex">{biological_sex()}</label>
+						<select
+							name="biological_sex"
+							class="select select-bordered w-full max-w-xs"
+							id="biological_sex"
+							placeholder={biological_sex()}
+						>
+							<option value="male">{male()} </option>
+							<option value="female">{female()} </option>
+							<option value="other">{other()} </option>
+						</select>
 						<label class="fieldset-label" for="mothers_last_name">{mothers_last_name()}</label>
 						<input
 							type="text"
diff --git a/apps/db-adapter/internal/memgraph/queries/get_blood_relations_by_id.cypher b/apps/db-adapter/internal/memgraph/queries/get_blood_relations_by_id.cypher
index bb14423..f74cd4c 100644
--- a/apps/db-adapter/internal/memgraph/queries/get_blood_relations_by_id.cypher
+++ b/apps/db-adapter/internal/memgraph/queries/get_blood_relations_by_id.cypher
@@ -13,6 +13,7 @@ RETURN collect({
   middle_name: ppl.middle_name,
   last_name: ppl.last_name,
   born: ppl.born,
+  biological_sex: ppl.biological_sex,
   died: ppl.died,
   profile_picture: ppl.profile_picture
 }) as people, 
diff --git a/apps/db-adapter/internal/memgraph/queries/get_family_tree_with_spouses.cypher b/apps/db-adapter/internal/memgraph/queries/get_family_tree_with_spouses.cypher
index 20ee375..b9e98b6 100644
--- a/apps/db-adapter/internal/memgraph/queries/get_family_tree_with_spouses.cypher
+++ b/apps/db-adapter/internal/memgraph/queries/get_family_tree_with_spouses.cypher
@@ -16,6 +16,7 @@ RETURN collect({
   middle_name: ppl.middle_name,
   last_name: ppl.last_name, 
   born: ppl.born,
+  biological_sex: ppl.biological_sex,
   died: ppl.died,
   profile_picture: ppl.profile_picture
 }) as people, 
diff --git a/apps/db-adapter/internal/memgraph/queries/get_managed_profiles.cypher b/apps/db-adapter/internal/memgraph/queries/get_managed_profiles.cypher
index b518a8f..ab0dc63 100644
--- a/apps/db-adapter/internal/memgraph/queries/get_managed_profiles.cypher
+++ b/apps/db-adapter/internal/memgraph/queries/get_managed_profiles.cypher
@@ -1,3 +1,3 @@
 MATCH (a)-[r1:Admin]->(b)
 WHERE id(a) = $id
-RETURN collect({id: id(b), first_name: b.first_name, last_name: b.last_name, managedSince: r1.added}) as managed;
\ No newline at end of file
+RETURN collect({id: id(b), first_name: b.first_name, last_name: b.last_name, adminSince: r1.added}) as managed;
\ No newline at end of file