Complex sentence: Veidt married a woman from an aristocratic German family, Felicitas Radke in 1923 and had a daughter, Vera Viola Maria, called Viola was born August 10 1925.
Split into simpler sentences: Veidt married a woman from an aristocratic German family, Felicitas Radke, in 1923. Their daughter, Vera Viola Maria, called Viola, was born August 10 1925.