Joan Beaufort ( 1404 – 15 July 1445) was Queen of Scotland from 1424 to 1437 as the spouse of King James I of Scotland. During part of the minority of her son James II (from 1437 to 1439), she served as the regent of Scotland. Background and early life Joan Beaufort was a daughter of John Beaufort, 1st Earl of Somerset, a legitimised son of John of Gaunt by his mistress (and later third wife) Katherine Swynford. Joan's mother was Margaret Holland, the granddaughter of Joan of Kent (wife of Edward the Black Prince) from her earlier marriage to Thomas Holland, 1st Earl of Kent. Joan was also a half-niece of King Henry IV of England, first cousin once removed of Richard II, and great-granddaughter of Edward III. Her uncle, Henry Beaufort, was a cardinal and Chancellor of England. King James I of Scotland met Joan during his time as a prisoner in England, and knew her from at least 1420. She is said to have been the inspiration for King James's famous long poem, The Kingis Quair, written during his captivity, after he saw her from his window in the garden. The marriage was at least partially political, as their marriage was part of the agreement for his release from captivity. From an English perspective an alliance with the Beauforts was meant to establish Scotland's alliance with the English, rather than the French. Negotiations resulted in Joan's dowry of 10,000 marks being subtracted from James's substantial ransom. Queen of Scotland On 12 February 1424, Joan Beaufort and King James were wed at St Mary Overie Church in Southwark. They were feasted at Winchester Palace that year by her uncle, Cardinal Henry Beaufort. She accompanied her husband on his return from captivity in England to Scotland, and was crowned alongside her husband at Scone Abbey. As queen, she often pleaded with the king for those who might be executed. The royal couple had eight children, including the future James II, and Margaret of Scotland, future spouse of Louis XI of France. Regency James I was assassinated in Perth on 21 February 1437. Joan had also been a target of assassination along with her husband, but managed to survive her injuries. She successfully directed her husband's supporters to attack his assassin Walter Stewart, Earl of Atholl, but was forced to give up power three months later. The prospect of being