Question: Who is Konrad Iv The Older's paternal grandfather?
Sentence (from "Konrad IV the Older"): Konrad IV the Older( ca. 1384 – 9 August 1447) was a Duke of Oels( Oleśnica), Koźle, half of Bytom and half of Ścinawa during 1412– 1416( with his brothers as co-rulers), since 1416 sole ruler over Kąty( Kanth), Bierutów, Prudnik and Syców and since 1417 Bishop of Wrocław and Duke of Nysa.
Relevant evidence: No