There is no reference to the Queen of Hearts having a nephew in Alice's Adventures in Wonderland.
The ace to ten of hearts are described as 'the royal children', but there is no other mention made of the Queen's relationship to her family.
Your nephew's nephew is the son of one of your nephew's brothers or sisters. He is your great nephew.
Aunt Letty is a caring and motherly character in "The Magician's Nephew" who looks after Digory and Polly. She is kind-hearted and concerned for their well-being, providing them with love and support throughout their adventures.
Your mother's (mom) nephew is your answer.
Your nephew's son is your grand nephew or great nephew.
Your nephew's son is your great nephew. Your niece's son is also your great nephew.
Your wife's nephew is your nephew and his son is your wife's, and your, great nephew.
The male counterpart of a niece is a nephew.
Niece would be an opposite as a niece is female and a nephew is male.
Your nephew's son is your great nephew.
Your nephew's son is your great nephew.
In English language terms for family relationships, there is no relationship called "nephew once removed." The son of your nephew is your great nephew.
Your nephew's son is your grand nephew or great nephew. Some people say one, some say the other.