What Relation Is My Grandchildren To Sisters Grandchildren?
What Relation Is My Grandchildren To Sisters Grandchildren? Your grandchild and your sibling’s grandchild are second cousins, because they share the same great grandparents – which are your parents. What relationship is my sister’s grandchild to me? Your sister’s grandkids are – I believe – your great-niece and/or great-nephew, and you are their great-aunt. What