In 1476, through the aid of Emperor Frederick III, he became bishop of Carniola and lived at Laibach.
He was an advocate of a general council of bishops as head of the Catholic church, rather than the Papacy.
[1][2] He attempted but failed to be appointed Cardinal in 1478 by the Pope.
In 1482, he traveled to Switzerland and attempted to convene a general council of bishops.
As a result, he was excommunicated by the Pope and held in prison.