His maternal grandparents were George Howard , 6th Earl of Carlisle and Lady Georgiana Cavendish ( 1783–1858 ) , herself the daughter of William Cavendish , 5th Duke of Devonshire and Lady Georgiana Spencer .
Head entity: lady georgiana cavendish Q19873507 12 13 14
Tail entity: lady georgiana spencer Q235644 31 32 33
Relation (head \u2192 tail): P25
Inverse relation (tail \u2192 head): P40