I am Nonna and my DH Nonno(Italian) to our two grandchildren, like others have mentioned, they have an extended family tree on their father's side and the grandma and grandpa names went to the older generation. We chose Nonna and Nonno because we love Italy and spend vacations there whenever possible. It is very cute to hear my DGD explain to her friends that "she's my grandmother but we call her Nonna..." The paternal grandparents are Memaw and Poppa...