His mother was Lady Anne Churchill , the daughter of John Churchill , 1st Duke of Marlborough and Sarah Churchill , Duchess of Marlborough .
Head entity: lady anne churchill Q2755975 3 4 5
Tail entity: sarah churchill, duchess of marlborough Q19176 18 19 20 21 22 23
Relation (head \u2192 tail): P25
Inverse relation (tail \u2192 head): P40