Frederic Nausea, born Friedrich Grau about 1496 in Waischenfeld, Germany; † 6 February 1552 in Trient, was the Catholic Bishop of the diocese of Vienna.
He was the son of a wagonmaker and received his early education at Bamberg and probably at Nuremberg under John Cochlæus; with Paul of Schwartzenberg, canon of Bamberg, he pursued humanistic, juristic, and theological studies at Pavia, Padua, and later at Siena, there obtaining degrees in Law and Divinity.
In 1525 he accepted the parish of St. Bartholomew at Frankfurt-on-the-Main and the title of Canon, but was soon obliged to leave on account of the intrigues and riots of the Lutherans, some of which were aimed at him.
He was prevented from being present at the opening of the Council of Trent by contrary orders from the king, but met Pope Paul III at Parma (1546) and there gave him his Sylvæ Synodales.
In the Acts of the Council Nausea is praised for his knowledge, his virtues, and his ecclesiastical convictions (Augustin Theiner, Acta genuina Conc.