Lothar von Richthofen, German lieutenant and pilot (died 1922)

Lothar Siegfried Freiherr von Richthofen was a German First World War fighter ace credited with 40 victories. He was a younger brother of top-scoring ace Manfred von Richthofen and a distant cousin of Luftwaffe Field Marshal Wolfram von Richthofen, who also became a flying ace.