 The Bohemian army withdrew from Hungary thereafter.Sebastian served in the fort of Koprivnica (Kapronca) in Slavonia in the summer of 1272, when Stephen's son and heir, the 10-year-old Ladislaus was abducted and imprisoned there by the lord of the castle, Joachim Gutkeled.King Ladislaus' charter from 1274 (under the influence of Joachim and his allies), euphemistically and falsely narrates that Sebastian "served faithfully [...] in the castle of Koprivnica, where we retreated before [the wrath of] our dearest father [Stephen V]".