The Best of the Hamilton’s James Hamilton, Duke of Châtellerault and 2nd Earl of Arran, (circa 1516 – 22 January 1575)

The Best of the Hamilton’s James Hamilton, Duke of Châtellerault and 2nd Earl of Arran, (circa 1516 – 22 January 1575) was a Scottish nobleman

From http://en.wikipedia.org/wiki/James_Hamilton,_Duke_of_Châtellerault

He was the eldest legitimate son of James Hamilton, 1st Earl of Arran.

Through his paternal grandmother Mary of Scotland, Hamilton was the great grandson of James II of Scotland. On the death of John Stewart, Duke of Albany in 1536, Arran became the next heir of the Kingdom of Scotland after the king's immediate family.

The children of the immediate royal family proved to be short-lived except the future Mary I of Scotland, so on the death of James V of Scotland in 1542 the Earl of Arran stood next in line to the Scottish throne after the baby Queen Mary I, for whom he was appointed Regent.