Circumstances were in his favour because Wenceslas II , son of Ottokar II and his second wife Kunigunda of Halych and heir to the throne , was still a minor .
Head entity: wenceslas ii Q155581 6 7
Tail entity: ottokar ii Q150320 11 12
Relation (head \u2192 tail): P22
Inverse relation (tail \u2192 head): P40