Background
He was the second son of Duke Bolko IV of Opole by his wife Margareta, possibly member of the House of Görz.
He was the second son of Duke Bolko IV of Opole by his wife Margareta, possibly member of the House of Görz.
On 6 October 1438 January paid homage to Casimir Jagiełło as King-elect of Bohemia, but after his resignation and the coronation of Albert of Habsburg as King, he paid homage again, this time to the Austrian ruler (this was performed officially in Wrocław on 3 December 1438). January I died on 5 September 1439 and the place of his burial is unknown.