No more than any one else.
brother
Your mothers niece is your first cousin. Your first cousin's child is your first cousin, once removed.
If mother's will gave her real property to her son and gave her nephew the right to live in the property then her nephew has a life estate. Her son must follow the provisions in the will. You should consult with the attorney who handled the estate to determine what your rights and obligations are.
Mother's grandson as regards her daughter is either her (daughter's) son or her (daughter's) nephew.
The children are both your cousins[uncle's children]and your nephew and niece[sister's children].
Be sure to look for other symptoms i know and have a disorder like this,look to see if he has a rash on his hands,a contusion on his knees this disorder is called post viral acute onset tick disorder.
Your nephew's nephew is the son of one of your nephew's brothers or sisters. He is your great nephew.
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.