Stewart of Darnley Archibald Douglas, 6th Earl of Angus. Born in England and raised at the court of her uncle Henry VIII, Margaret was Henry's officially recognized heir between the disgrace of Anne Boleyn and the birth of the future Edward VI. In 1565 Henry Stuart, Lord Darnley married his cousin Mary Queen of Scots, like him a descendant of Margaret Tudor and Henry VII. Mary's descent from Margaret Tudor's first marriage to James IV of Scots also placed her in line for the English throne, but many argued that Margaret Douglas's claim was superior as Margaret and her sons Henry Stuart, Lord
Earl of Darnley despatched to Ireland in search of forfeited estates, and in turn his father was William Bligh, a prosperous Plymouth merchant. John Bligh, 1st Earl of Darnley, married Theodosia Hyde, 10th Baroness Clifton (of Leighton Bromswold), great-granddaughter of Lord George Stuart, younger son of Esmé Stewart, 3rd Duke of Lennox, also 3rd Earl of Darnley (see the Baron Clifton of Leighton Bromswold and the Duke of Lennox for earlier history of these titles). He represented Athboy in the Irish House of Commons from 1709 to 1721. In 1721 he was raised to the Peerage of Ireland as Baron Clifton of Rathmore,