Troïl, Uno a Swedish prelate, son of the foregoing, was born at Stockholm, Feb. 24,1746. After a brilliant course of study at Upsala, and extensive travels in Germany, France, and England, he became successively almoner of the regiment (1773), preacher in ordinary to the king (1775), bishop of Linkoping (1784), president of the consistory of Stockholm and archbishop of Upsala (Aug. 30, 1787), where he died, July 27, 1803. He wrote several historical sketches, for which see Hoefer, Nouv. Biog. Géneralé, s.v.