  Dietrich returned to Germany in 1280 and held the post of lector in the city of Trier until 1281. He returned to Paris in 1281 in order to hold lectures on the Sentences of Peter Lombard, perhaps at Saint-Jacques. He may have remained in Paris until 1293. Although the documents are not clear, most historians agree that he was appointed prior of the Dominican convent in Würzburg. In 1293 he was named Provincial Superior of his order for the province of Germany, Albert the Great’s old post. Somewhere between 1296 and 1297 he was made “Master of Theology” at Paris. He continued to teach in Paris until 1300. In 1304 he was present at the general chapter of the Dominican order held at Toulouse. His name last appears in the acts of the general chapter of the order held in Piacenza in 1310. There he was appointed Vicar Provincial of Germany. After this time his name drops out of the documents.(Eckert 1957/1959; Kandler 2009)