Career
Thus in German he appears as Martin von Troppau and in Czechoslovakian as Martin z Opavy. From the middle of the 13th century, Martin was active in Rome as confessor and chaplain for Pope Alexander IV and his successors, Pope Urban IV, Pope Clement IV, Pope Gregory, Pope Innocent V, Pope Adrian V and Pope John XXI (d 1277), the last pope to appear in his chronicles. On 22 June 1278, Pope Nicholas III, while in Viterbo, appointed him Archbishop of Gniezno.