Koellin, Konrad

KOELLIN, KONRAD. - Dominican theologian, b. at Ulm around 1476, d. at Cologne on 26 Aug. 1536. He entered religious life in his native city in 1492, studied at Ulm and at Heidelberg (1500), where he was master of the students, professor of theology, prior and then regent (1507-10). In 1510 he was sent as regent to Basel and the following year (1511) to the Studium of Cologne, a post he held until his death.

In 1527 he was appointed inquisitor for the dioceses of Mainz, Cologne and Trier. As such he took part in the trial against the heretics Clarembach and Fliesteden (1528-29) and in 1533 directed that against Heinrich Cornelius Agrippa, whose De occulta philosophia he condemned. In 1530 he prepared with other theologians the refutation of the Augsburg Confession. K. was the first who in Germany introduced as a scholastic textbook the Summa theologiae of St. Thomas. His commentary on the 1a-2ae was published in 1512 at the pressing insistence of the Faculty of Theology of Heidelberg (Expositio commentaria prima subtilissima simul ac lucidissima, Cologne 1512). Also the fruit of his teaching were: Quodlibeta viginti septem (ibid. 1523). Against Luther he wrote: Eversio Lutherani epithalami (ibid. 1527) and Adversus caninas M. Lutheri nuptias (Tübingen 1530).