Sempill, R. Heir followis the testament and tragedie of vmquhile King Henrie Stewart of gude memorie, 1567
Cokayne, G. Complete peerage, vol. 7, 1910 p. 600 (Stuart, Henry, styled Lord Darnley, b. 1545, cr. Lord Ardmannoch & Earl of Ross, 1565; Duke of Albany 1565; 1565 m. Mary Queen of Scots having been proclaimed King of Scotland the previous day, d. 1567 from an explosion of gunpowder)