Which woman was the sister of XXX?
Jerzy Kossak
Jerzy Kossak (Kraków, 11 September 1886 -- 11 May 1955, Kraków) was a Polish realist painter specializing in military scenes; son of painter Wojciech Kossak and grandson of painter Juliusz Kossak -- a third-generation artist from a well-known and sought after family of painters, writers and poets.