Complex sentence: Vilmos was born and the eldest of three sons of Tokés Gabor (1859-1921) and Lílí (1856-1934) and brother to Álex Gabor (1887-1924) and Joseph Gabor (1889-1944).
Split into simpler sentences: Vilmos was born the eldest of three sons of Tokés Gabor (1859-1921) and his wife, Lílí (1856-1934). His younger brothers were Álex Gabor (1887-1924) and Joseph Gabor (1889-1944).