Henryk IV Probus
The first mention of him is in 1267 as chaplain of the Bishop, Thomas Zaremba and in 1268 records state he was a Canon of Wrocław and had a master's degree, indicating a university education. He was a strong supporter of the bishop Thomas Zaremba in his dispute with Henryk IV Probus and was involved in the siege by Thomas in Racibórz in 1287.