For a true ‘relationship’ to exist, there must be an ancestor who is common to both individuals. Examine the chart below, the Common Ancestor is Box 1 on the Horizontal Scale (HS) as well as Box 1 on the Vertical Scale (VS).
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
1 |
Common
Ancestor |
Son
or
Daughter |
Grand
-son
or
-daughter |
Great
Grandson
or
-daughter |
2nd Great
Grandson
or
-daughter |
3rd Great
Grandson
or
-daughter |
4th Great
Grandson
or
-daughter |
5th Great
Grandson
or
-daughter |
6th Great
Grandson
or
-daughter |
7th Great
Grandson
or
-daughter |
2 |
Son
or
Daughter |
Siblings
(Brother
or
Sister) |
Nephew
or
Niece |
Grand-
Nephew
or
Niece |
Great
Grand-
Nephew
or Niece |
2nd Great
Grand-
Nephew
or Niece |
3rd Great
Grand-
Nephew
or Niece |
4th Great
Grand-
Nephew
or Niece |
5th Great
Grand-
Nephew
or Niece |
6th Great
Grand-
Nephew
or Niece |
3 |
Grand
-son
or
-daughter |
Nephew
or
Niece |
First
Cousin |
First
Cousin
Once
Removed |
First
Cousin
Twice
Removed |
First
Cousin Three X
Removed |
First
Cousin
Four X
Removed |
First
Cousin
Five X
Removed |
First
Cousin
Six X
Removed |
First
Cousin
7 X
Removed |
4 |
Great
Grandson
or
-daughter |
Grand-
Nephew
or
Niece |
First
Cousin
Once
Removed |
Second
Cousin |
Second
Cousin
Once
Removed |
Second
Cousin
Twice
Removed |
Second
Cousin
Three X
Removed |
Second
Cousin
Four X
Removed |
Second
Cousin
Five X
Removed |
Second
Cousin
Six X
Removed |
5 |
2nd Great
Grandson
or
-daughter |
Great
Grand-
Nephew
or Niece |
First
Cousin
Twice
Removed |
Second
Cousin
Once
Removed |
Third
Cousin |
Third
Cousin
Once
Removed |
Third
Cousin
Twice
Removed |
Third
Cousin
Three X
Removed |
Third
Cousin
Four X
Removed |
Third
Cousin
Five X
Removed |
6 |
3rd Great
Grandson
or
-daughter |
2nd Great
Grand-
Nephew
or Niece |
First
Cousin
Three X
Removed |
Second
Cousin
Twice
Removed |
Third
Cousin
Once
Removed |
Fourth
Cousin |
Fourth
Cousin
Once
Removed |
Fourth
Cousin
Twice
Removed |
Fourth
Cousin
Three X
Removed |
Fourth
Cousin
Four X
Removed |
7 |
4th Great
Grandson
or
-daughter |
3rd Great
Grand-
Nephew
or Niece |
First
Cousin
Four X
Removed |
Second
Cousin
Three X
Removed |
Third
Cousin
Twice
Removed |
Fourth
Cousin
Once
Removed |
Fifth
Cousin |
Fifth
Cousin
Once
Removed |
Fifth
Cousin
Twice
Removed |
Fifth
Cousin
Three X
Removed |
8 |
5th Great
Grandson
or
-daughter |
4th Great
Grand-
Nephew
or Niece |
First
Cousin
Five X
Removed |
Second
Cousin
Four X
Removed |
Third
Cousin
Three X
Removed |
Fourth
Cousin
Twice
Removed |
Fifth
Cousin
Once
Removed |
Sixth
Cousin |
Sixth
Cousin
Once
Removed |
Sixth Cousin
Twice
Removed |
9 |
6th Great
Grandson
or
-daughter |
5th Great
Grand-
Nephew
or Niece |
First
Cousin
Six X
Removed |
Second
Cousin
Five X
Removed |
Third
Cousin
Four X
Removed |
Fourth
Cousin
Three X
Removed |
Fifth
Cousin
Twice
Removed |
Sixth
Cousin
Once
Removed |
Seventh
Cousin |
Seventh
Cousin
Once
Removed |
10 |
7th Great
Grandson
or
-daughter |
6th Great
Grand-
Nephew
or Niece |
First
Cousin
Seven X
Removed |
Second
Cousin
Six X
Removed |
Third
Cousin
Five X
Removed |
Fourth
Cousin
Four X
Removed |
Fifth
Cousin
Three X
Removed |
Sixth
Cousin
Twice
Removed |
Seventh
Cousin
Once
Removed |
Eighth
Cousin |