The learned name of Thomas Lieber (1524-1583), a Swiss physician, who maintained the opinions from which the well-known epithet of Erastian, as now used, is derived. He was successively professor medicine at Heidelberg and of ethics at Basel. He maintained in his writings the complete subordination of the ecclesiastical to the secular power; and he declared that the Church had no right to exclude any one from church ordinances or to inflict excommunication.