URSINUS, ZACHARIAS (1534-1583), German theologian, and one of the authors of the Heidelberg Catechism (q.v.), was born at Breslau on the 18th of July 1534, and became a disciple of Melanchthon at Wittenberg. He afterwards studied divinity at Geneva under Calvin, and Hebrew at Paris under Jean Mercier. In 1561 he was appointed professor in the Collegium Sapientiae at Heidelberg, where in 1563 at the instance of the elector-palatine, Frederick III., he drew up the Catechism in co-operation with Kaspar Olevian. The death of the elector in 1576 led to the removal of Ursinus, who from 1578 till his death in 1583 occupied a professorial chair at Neustadt- ander-Haardt.
His Works were published in 1587-89, and a more complete edition by his son and two of his pupils, Pareus and Reuterus, in 1612.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)