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
Henry Stuart, Lord Darnley the inheritance of England and Scotland and the houses of Hamilton and Douglas. Aubigny was also later accused of supporting Mary's title to the throne of England and hinting that even his nephew had a stronger claim than Elizabeth. Lennox set Nesbit to watch Mary, Darnley and Darnley's tutor, John Elder. In 1559 Nicholas Throckmorton, the English ambassador in Paris, warned Elizabeth that Elder was "as dangerous for the matters of England as any he knew." Lord Darnley was the next claimant to the English throne, after the Queen of Scots, and his aging mother, and as a male, English-born