Kata Kunci Pencarian:
- Ulrich Zwingli
- Johannes Spieß
- Benedikt Rejt
- SM U-19 (Germany)
- SM U-9
- List of World War I U-boat commanders
- Otto Weddigen
- Presidents of Leipzig University
- List of the largest ships hit by U-boats in World War I
- SM U-135
- Johannes Theodor Kuhlemann
