Ermentrude 's brother , Count Ebles II of Roucy , campaigned in Spain in 1073 , and their sister , Felicia , married King Sancho of Aragon , father of Alfonso the Battler .
Head entity: alfonso the battler Q81833 30 31 32
Tail entity: felicia Q2750456 20
Relation (head \u2192 tail): P25
Inverse relation (tail \u2192 head): P40