[2][3] He died of an unknown infectious disease on 25 April 1629 and was buried in the cathedral at the Rock of Cashel in County Tipperary.
[2] He had Monea Castle built on his inherited lands in Fermanagh, starting in 1616, completed about 1618, and a bawn added in 1622.
One of the sons of his first marriage to Mary Wilkie of Sachtonhill was the 1st Viscount of Glenawly, a soldier in Swedish service, who in Sweden was created Baron of Deserf.
[citation needed] Lewis Hamilton was the son of his second marriage, and he also was in Swedish service and was elevated there to baronial rank.
[citation needed] Captain John Hamilton of Monea was Malcolm's younger son of his first marriage.