James V of Scotland

James V married Mary of Guise, a French noblewoman, as his second wife. The marriage strengthened the Auld Alliance with France and produced a daughter, Mary, who would become Mary Queen of Scots.

James V executed James Hamilton of Finnart, a powerful noble and former regent, for treason. The execution was part of James's policy to curb noble power and centralize royal authority, but it created lasting enmity with the Hamilton family.

James V conducted a campaign to suppress the Lords of the Isles, who had long held semi-independent power in the Highlands and Islands. He executed the last Lord of the Isles, Donald Dubh, and annexed their territories to the crown.

James V's Scottish army was routed by a smaller English force at Solway Moss near the River Esk. The defeat was a humiliating disaster, with many Scottish nobles captured. James V died shortly after, reportedly of despair.