Generalinspekteur der Marine
List of Generalinspekteur der Marine

№
-
Inspector General
Took office
Left office
Time in office
1
Prinz Adalbert of Prussia
Admiral Prinz Adalbert of Prussia (1811–1873)
1871
6 June 1873 †
1–2 years
2
Hans von Koester
Admiral Hans von Koester (1844–1928)
14 March 1899
29 December 1906
7 years, 290 days
3
Prinz Heinrich of Prussia
Admiral Prinz Heinrich of Prussia (1862–1929)
1 October 1909
10 August 1918
8 years, 313 days

Question: When did Admiral Hans von Koester hold the office?
Answer: Admiral Hans von Koester held the office of Generalinspekteur der Marine from 14 March 1899 until 29 December 1906.