Complex sentence: He was born in Pritzwalk in Germany, the son of Emil Quandt (1849-1925), who had married in 1883 the daughter of a rich textile manufacturer (Reichswolle AG) and who took charge of the company in 1900.
Split into simpler sentences: He was born in Pritzwalk in Germany, the son of Emil Quandt (1849-1925). Emil had married in 1883 the daughter of a rich textile manufacturer (Reichswolle AG) and he took charge of the company in 1900.