Complex sentence: James Hamilton, Duke of Châtellerault and 2nd Earl of Arran, (c.1516--22 January, 1575) was a Scottish nobleman and the eldest legitimate son of James, 1st Earl of Arran.
Split into simpler sentences: James Hamilton, Duke of Châtellerault and 2nd Earl of Arran, (c.1516--22 January, 1575) was a Scottish nobleman. He was the eldest legitimate son of James Hamilton, 1st Earl of Arran.