Complex sentence: His parents (Johann von Wierdt († 1606) and Elisabeth Streithoven) belonged to the numerous class of the lesser nobility, and at an early age he left home to follow the career of a soldier of fortune in the Walloon cavalry of the Spanish service.
Split into simpler sentences: His parents (Johann von Wierdt († 1606) and Elisabeth Streithoven). He belonged to the numerous class of the lesser nobility, and at an early age he left home to follow the career of a soldier of fortune in the Walloon cavalry of the Spanish service.