Cosmas of Prague
As a strong confidant of the royal power, Seraphin assisted Coloman, who abandoned his predecessor's foreign policy and supported the pope. Perhaps Seraphin had a crucial role in this process. Still, Coloman rejected the Gregorian Reforms and exercised the royal authority to invest his bishops and abbots. In May 1099, Seraphin escorted his king to Uherské Hradiště at the Bohemian border to meet Duke Bretislaus II, where "they renewed their age-old bonds of friendship and peace and confirmed them with oaths", according to the contemporaneous chronicler Cosmas of Prague. Following that, Herman, Bishop-elect of Prague and Cosmas of Prague were ordained priests by Seraphin in Esztergom in June. Beforehand, Herman was appointed bishop by Henry IV, Holy Roman Emperor in April, thus Seraphin acknowledged the Emperor's right of investiture with the consecration, in accordance with Coloman's standpoint.