Complex sentence: In 1505 Spalatin returned to Erfurt to study jurisprudence, was recommended to Conrad Mutianus, and was welcomed by the little band of German humanists of whom Mutianus was chief.
Split into simpler sentences: In 1505 Spalatin returned to Erfurt to study jurisprudence. He was recommended to Conrad Mutianus, and was welcomed by the little band of German humanists of whom Mutianus was chief.