diff --git a/client/app/src/main/java/main/MainController.java b/client/app/src/main/java/main/MainController.java
index c7092a7..728c051 100644
--- a/client/app/src/main/java/main/MainController.java
+++ b/client/app/src/main/java/main/MainController.java
@@ -164,7 +164,7 @@ public class MainController {
             vBox.getChildren().add(timeLabel);
         }
 
-        Label typeLabel = new Label("Wer: " + event.getOwnerName());
+        Label typeLabel = new Label("Wer: " + event.getOwnerName().replace("ü", "\u00fc"));
         vBox.getChildren().add(typeLabel);
 
         /*
diff --git a/client/data/src/main/java/res/Event.java b/client/data/src/main/java/res/Event.java
index 5a6e585..a730659 100644
--- a/client/data/src/main/java/res/Event.java
+++ b/client/data/src/main/java/res/Event.java
@@ -2,6 +2,7 @@ package res;
 
 import com.sun.jdi.event.StepEvent;
 
+import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -70,10 +71,30 @@ public class Event {
         if(name.length() < 3){
             throw new IllegalArgumentException("Der Name muss eine L\u00e4nge von 3 haben.");
         }
-        Pattern pattern = Pattern.compile("[A-Za-zÄÖÜäöü0-9 =!?+*/$%€.:,;_<>()-]*");
+        Pattern pattern = Pattern.compile("[A-Za-z\u00e4\u00f6\u00fc\u00c4\u00d6\u00dc\u00df0-9 =!?+*/$%.:,;_<>()-]*");
         Matcher matcher = pattern.matcher(name);
         if(!matcher.matches()){
-            throw new IllegalArgumentException("Der Name darf nur aus Zahlen, Buchstaben und folgenden Sonderzeichen bestehen: =!?+*/$%€.:,;_ <>()-");
+            System.out.println(name);
+
+            byte[] bytes = name.getBytes(StandardCharsets.UTF_16);
+
+            String utf8EncodedString = new String(bytes, StandardCharsets.UTF_16);
+            System.out.println(utf8EncodedString);
+
+            for (char c : (name).toCharArray()) {
+                System.out.print(c + " " + (int)c + ", ");
+            }
+            System.out.println();
+            for (char c : (name).toCharArray()) {
+                System.out.print(c + " " + (int)c + ", ");
+            }
+            System.out.println();
+            for (char c : ("TäöüÄÖÜ").toCharArray()) {
+                System.out.print(c + " " + (int)c + ", ");
+            }
+            System.out.println();
+
+            throw new IllegalArgumentException("Der Name darf nur aus Zahlen, Buchstaben und folgenden Sonderzeichen bestehen: \u00e4\u00f6\u00fc \u00c4\u00d6\u00dc \u00df =!?+*/$%.:,;_ <>()-");
         }
         if(priority < 0){
             throw new IllegalArgumentException("Bitte eine Priorit\u00e4t w\u00e4hlen.");
@@ -106,7 +127,7 @@ public class Event {
     }
 
     public void setName(String name) {
-        this.name = name;
+        this.name = convertToASCII(name);
     }
 
     public int getPriority() {
@@ -192,4 +213,9 @@ public class Event {
                 "&isFullDay=" + isFullDay() +
                 "&isPrivate=" + isPrivate();
     }
+
+    private String convertToASCII(String s){
+        byte[] germanBytes = s.getBytes();
+        return new String(germanBytes, StandardCharsets.US_ASCII);
+    }
 }