His uncle was polymath Lionel Penrose , whose children include mathematician Oliver Penrose , polymath Sir Roger Penrose , chess grandmaster Jonathan Penrose , and geneticist Shirley Hodgson .
Head entity: lionel penrose Q339375 4 5
Tail entity: oliver penrose Q339385 11 12
Relation (head \u2192 tail): P40
Inverse relation (tail \u2192 head): P22