James II of Scotland was born on October 16, 1430, and became king in 1437 after the assassination of his father, James I of Scotland. His reign was marked by efforts to strengthen royal authority and reduce the power of the nobility. He was known for his military campaigns against the English and for consolidating his rule over the Scottish Highlands. James II is often remembered for his tragic death in 1460 during the siege of Roxburgh Castle, when a cannon exploded, killing him. His reign laid the groundwork for the future stability of the Scottish crown, and he was succeeded by his son, James III of Scotland.