Some of your great grandmother's great grandchildren are your second cousins. Some may be your first cousins and some could be your siblings.
If they are descended from your great grandmother but not from your grandparent, they are second cousins. If they are descended from your great grandmother and your grand parent, but not from your parent, they are your first cousins. If they are descended from your great grandmother, your grandparent, and from your parent, they are your siblings (your brothers and sisters).
Your great great aunt is the sister of one of your great grandparents.Her grandson is second cousin to one of your parents, and your second cousin, once removed.
Anyone who has a great grandparent in common will be second cousins. Another way to look at this is to note that the grandchildren of your great aunts and great uncles are your second cousins. Their children are your second cousins, once removed, and their parents are your first cousins once removed.
They would be second cousins. They share a common Great Grandparent.
Second cousin once removed are not at all like fourth cousins. With second cousins once removed, the two people have common ancestor. That ancestor is great grandparent of one and the great great grandparent of the other. Fourth cousins are the great great grandchildren of siblings, so they have a great great great grandparent in common.
If two people have grandparents who are second cousins, it means that their great-grandparents are siblings or cousins. Therefore, the two people are third cousins to each other.
Your child and your great nephew's parents would be first cousins. Their children would then be second cousins. And if they have children, they will be third cousins.
If your father and your girlfriend's father are second cousins, then you and your girlfriend are third cousins. You share one or two great-great-grandparents.
Second cousins are the people in your family who have the same great-grandparents as you, but not the same grandparents.
If the grandfather of A and the grandfather of B are second cousins, then A and B are fourth cousins. Their common ancestor is a great great great grandparent.
No they would be your second cousins. Those kids are your parents cousins. So they would be your second.
Double cousins? As in one cousin has a child, then another cousin has a child? If that's the case then I'm almostpositive that makes them second or third cousins?
Two people are second cousins to each other if their grandparents are siblings (bothers of sisters). Since your grandmother and his grandmother are second cousins, you and he each have a great great grandparent who were siblings, and that means that you both have a great great great grandparent in common. You can start counting generations from that common ancestor and determine that you and he are fourth cousins. The easy way to figure your relationship to him is to count generations from your grandmothers, whom you know are second cousins. The children of second cousins are third cousins to each other - that is your parent and his parent. The children of third cousins are fourth cousins to each other - that is you and him. You and he are fourth cousins to each other.