Career
He succeeded to the titles of 9th Lord Kennedy and 7th Earl of Cassillis on 22 September 1668. He was one of the commission exercising the office of Treasurer of Scotland between 1689 and 1695. They had two children:
William Kennedy, Master of Cassilis (b1668)
John Kennedy, Lord Kennedy (ca 1672–1700)
Anne Kennedy (bef 1679–1699)
They had three children:
Honorary
James Kennedy (b 1701 – d 1759)
Lady Elizabeth Kennedy (b 1701)
Lady Mary Kennedy (b 1701).
