Question: What is the date of death of Konrad Iv The Older's father?
Sentence (from "Konrad III the Old"): Konrad III the Old( – 28 December 1412) was a Duke of Oleśnica, Koźle, half of Bytom and half of Ścinawa since 1377( until 1403 with his father as co-ruler).
Relevant evidence: Yes