The arms are those of Mitchell, probably for Andrew Mitchell, of Edinburgh, born in 1708. He married Barbara, daughter and heiress of Thomas Mitchell of Thainston, in 1721. He entered the Middle Temple in 1733, was called to the bar in 1738, and was appointed Under Secretary of State for Scotland in 1742. He became envoy to Berlin in 1756, becoming Ambassador Extraordinary and Minister Plenipotentiary to the court of Frederick the Great of Prussia. For his diplomatic service there during the period of the Seven Years' War he received the Order of the Bath. He died in Berlin in 1771.