Family Relationship Chart

	0	1	2	3	4	5
0	Common Ancestor	Child (son or daughter)	Grandchild	Great Grandchild	2nd Great Grandchild	3rd Great Grandchild
1	Child (son or daughter)	*Sibling (brother or sister)*	Nephew or Niece	Grand Nephew or Niece	Great Grand Nephew or Niece	2 Great Grand Nephew or Niece
2	Grandchild	Nephew or Niece	First Cousin	First Cousin once removed	First Cousin twice removed	First Cousin 3 times removed
3	Great Grandchild	Grand Nephew or Niece	First Cousin once removed	Second Cousin	Second Cousin once removed	Second Cousin twice removed
4	2 Great Grandchild	Great Grand Nephew or Niece	First Cousin twice removed	Second Cousin once removed	Third Cousin	Third Cousin once removed
5	3 Great Grandchild	Second Great Grand Nephew or Niece	First Cousin 3 times removed	Second Cousin twice removed	Third Cousin once removed	Fourth Cousin

This chart is based on the system used by courts and most genealogical societies. The numbers at the top and left side represent the generations away from the common ancestor. To identify the relationship between any two people, first identify the common ancestor of the two people. Locate the box in the upper left corner for the common ancestor. Follow the column straight down to find the relationship of one of the two people to the common ancestor. Across the top row of the chart, find the relationship of the second person to the common ancestor. The highlighted boxes show persons of the same generation. "Removed " indicates that the two persons selected are not of the same generation. This chart may be extended in either direction to identify more distant relationships.