Gunter Jahn
Gunter Jahn ( 27 September 1910 – 12 April 1992 ) was German U-boat commander during World War II . 
<triplet> Gunter Jahn <subj> 27 September 1910 <obj> date of birth <subj> 12 April 1992 <obj> date of death <subj> World War II <obj> conflict