Wieland Wagner was the elder of two sons of Siegfried and Winifred Wagner , grandson of composer Richard Wagner , and great - grandson of composer Franz Liszt through Wieland 's paternal grandmother .
Head entity: siegfried Q143867 9
Tail entity: richard wagner Q1511 17 18
Relation (head \u2192 tail): P40
Inverse relation (tail \u2192 head): P22