Jürgen Kreiner
From Tardis Wiki, the free Doctor Who reference
Jurgen Kreiner was the brother of Otto Kreiner and the uncle of Fitz Kreiner. During World War II, he was interred in a Nazi concentration camp. Sometime after the War ended, Jurgen came to England to visit his brother's family. Otto was reluctant to explain the meaning of the serial number on Jurgen's arm to young Fitz. (EDA: Frontier Worlds)
