Leutnant Hans Karl Müller was a pioneering German flying ace during World War I.
Hans Karl Müller was born on 19 July 1892 in Loschwitz, Germany, which was then in the Kingdom of Saxony.
When World War I broke out, Müller joined the German Air Service, then known as the Die Fliegertruppen des deutschen Kaiserreiches.
[1] Over a four-month period, from 26 August through 26 December 1916, Müller scored six more aerial victories to become his squadron's leading ace.
While scoring his ninth and final victory on 26 December, he was so severely wounded in the abdomen that he was removed from combat duty.