Stirling Castle and expanded his father's building programme, creating the centrepiece of the castle, the Royal Palace, built under the direction of Sir James Hamilton of Finnart and masons brought from France. James V also died young, leaving unfinished work to be completed by his widow, Mary of Guise. His infant daughter, Mary, Queen of Scots, was brought to Stirling Castle for safety, and crowned in the chapel royal on 9 September 1543. She too was brought up here, until she was sent to Inchmahome Priory, and then to France in 1548. In the 1550s, during the Regency of Mary of Guise,
Henry Stuart, Lord Darnley not together in early 1545 and a letter of March 1566, from Mary Queen of Scots, indicates Darnley was then nineteen years old. Therefore the date 1546 would seem probable. A descendant of both James II of Scotland and Henry VII of England, Henry Stuart, Lord Darnley, was heir to two royal houses, the House of Stuart and the House of Tudor, thus he had claim to both the Scottish and English thrones, a claim that may have cost him his life. In 1545, his father, Matthew Stewart, 4th Earl of Lennox was found guilty of treason in Scotland for