Marie of Brittany , daughter of John IV , Duke of Brittany , had been married in 1396 to John I , Count of Alençon .
Head entity: marie of brittany Q11341169 0 1 2
Tail entity: john iv, duke of brittany Q449008 6 7 8 9 10 11
Relation (head \u2192 tail): P40
Inverse relation (tail \u2192 head): P22