| Born | 3 May 1915 | Hamburg | |
| Died | 7 Oct 1994 | (79) |
|
Ranks
Decorations
|
U-boat Commands
| U-boat | From | To | |
|---|---|---|---|
| U-46 | Oct, 1941 | 19 Nov 1941 | No war patrols |
| U-601 | 18 Dec 1941 | 28 Nov 1943 | 7 patrols (191 days) |
| U-872 | 10 Feb 1944 | 29 Jul 1944 | No war patrols |
| U-3015 | 17 Dec 1944 | 5 May 1945 | No war patrols |
Patrol info for Peter-Ottmar Grau
| U-boat | Departure | Arrival | ||||||
| 1. | U-601 | 4 Jul 1942 | Kiel | 10 Jul 1942 | Narvik | 7 days | ||
| 2. | U-601 | 14 Jul 1942 | Narvik | 3 Aug 1942 | Kirkenes | Patrol 1, | 21 days | |
| 3. | U-601 | 9 Aug 1942 | Kirkenes | 20 Sep 1942 | Neidenfjord | Patrol 2, | 43 days | |
| 4. | U-601 | 22 Sep 1942 | Neidenfjord | 24 Sep 1942 | Bergen | 3 days | ||
| 5. | U-601 | 31 Oct 1942 | Bergen | 3 Nov 1942 | Narvik | 4 days | ||
| 6. | U-601 | 5 Nov 1942 | Narvik | 7 Dec 1942 | Harstad | Patrol 3, | 33 days | |
| 7. | U-601 | 8 Dec 1942 | Harstad | 8 Dec 1942 | Narvik | 1 days | ||
| 8. | U-601 | 15 Dec 1942 | Narvik | 24 Dec 1942 | Kiel | 10 days | ||
| 9. | U-601 | 3 Apr 1943 | Kiel | 5 Apr 1943 | Kristiansand | 3 days | ||
| 10. | U-601 | 6 Apr 1943 | Kristiansand | 7 Apr 1943 | Bergen | 2 days | ||
| 11. | U-601 | 15 Apr 1943 | Bergen | 14 May 1943 | Bergen | Patrol 4, | 30 days | |
| 12. | U-601 | 15 May 1943 | Harstad | 15 May 1943 | Narvik | 1 days | ||
| 13. | U-601 | 7 Jul 1943 | Narvik | 10 Jul 1943 | Narvik | 4 days | ||
| 14. | U-601 | 14 Jul 1943 | Narvik | 25 Jul 1943 | Hammerfest | Patrol 5, | 12 days | |
| 15. | U-601 | 26 Jul 1943 | Hammerfest | 27 Jul 1943 | Tromsö | 2 days | ||
| 16. | U-601 | 29 Jul 1943 | Tromsö | 29 Jul 1943 | Hammerfest | 1 days | ||
| 17. | U-601 | 30 Jul 1943 | Hammerfest | 28 Aug 1943 | Narvik | Patrol 6, | 30 days | |
| 18. | U-601 | 13 Sep 1943 | Narvik | 14 Sep 1943 | Tromsö | 2 days | ||
| 19. | U-601 | 15 Sep 1943 | Tromsö | 16 Sep 1943 | Hammerfest | 2 days | ||
| 20. | U-601 | 16 Sep 1943 | Hammerfest | 7 Oct 1943 | Hammerfest | Patrol 7, | 22 days | |
| 21. | U-601 | 8 Oct 1943 | Hammerfest | 8 Oct 1943 | Tromsö | 1 days | ||
| 22. | U-601 | 9 Oct 1943 | Tromsö | 9 Oct 1943 | Harstad | 1 days | ||
| 23. | U-601 | 10 Oct 1943 | Harstad | 10 Oct 1943 | Skjomenfjord | 1 days | ||
| 24. | U-601 | 12 Oct 1943 | Skjomenfjord | 14 Oct 1943 | Trondheim | 3 days | ||
| 25. | U-601 | 17 Oct 1943 | Trondheim | 19 Oct 1943 | Bergen | 3 days | ||
| 7 patrols, 191 days at sea | ||||||||
Ships hit by Peter-Ottmar Grau
| Date | U-boat | Name of ship | Tons | Nat. | Convoy | ||
|---|---|---|---|---|---|---|---|
| 1 Aug 1942 | U-601 | Krest’janin | 2,513 | sj | |||
| 24 Aug 1942 | U-601 | Kujbyshev | 2,332 | sj | |||
| 24 Aug 1942 | U-601 | Medvezhonok | 50 | sj | |||
| 23 Nov 1942 | U-601 | Kuznets Lesov | 3,974 | sj | QP-15 | ||
| 8,869 | |||||||
4 ships sunk (8,869 tons). Legend | |||||||
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About ranks and decorations
Ranks shown in italics are our database inserts based on the rank dates of his crew comrades. The officers of each crew would normally have progressed through the lower ranks at the same rate.


