Complex sentence: Marta Hegemann (1894-1970) was a German artist, married to fellow artist Anton Räderscheidt (October 11,1892--March 8,1970).
Split into simpler sentences: Marta Hegemann (1894-1970) was a German artist. She was married to fellow artist Anton Räderscheidt (October 11,1892--March 8,1970).