Genealogy Relationship Chart

1 2 3 4 5 6 7 8 9 10
1 Common Ancestors Child Grandchild Great Grandchild 2nd Great Grandchild 3rd Great Grandchild 4th Great Grandchild 5th Great Grandchild 6th Great Grandchild 7th Great Grandchild
2 Child Brother / Sister Niece / Nephew Grand Niece / Nephew Great Grand Niece / Nephew 2nd Great Grand Niece / Nephew 3rd Great Grand Niece / Nephew 4th Great Grand Niece / Nephew 5th Great Grand Niece / Nephew 6th Great Grand Niece / Nephew
3 Grandchild Niece / Nephew First Cousin First Cousin Once Removed First Cousin Twice Removed First Cousin Three Times Removed First Cousin Four Times Removed First Cousin Five Times Removed First Cousin Six Times Removed First Cousin Seven Times Removed
4 Great Grandchild Grand Niece / Nephew First Cousin Once Removed Second Cousin Second Cousin Once Removed Second Cousin Twice Removed Second Cousin Three Times Removed Second Cousin Four Times Removed Second Cousin Five Times Removed Second Cousin Six Times Removed
5 2nd Great Grandchild Great Grand Niece / Nephew First Cousin Twice Removed Second Cousin Once Removed Third Cousin Third Cousin Once Removed Third Cousin Twice Removed Third Cousin Three Times Removed Third Cousin Four Times Removed Third Cousin Five Times Removed
6 3rd Great Grandchild 2nd Great Grand Niece / Nephew First Cousin Three Times Removed Second Cousin Twice Removed Third Cousin Once Removed Fourth Cousin Fourth Cousin Once Removed Fourth Cousin Twice Removed Fourth Cousin Three Times Removed Fourth Cousin Four Times Removed
7 4th Great Grandchild 3rd Great Grand Niece / Nephew First Cousin Four Times Removed Second Cousin Three Times Removed Third Cousin Twice Removed Fourth Cousin Once Removed Fifth Cousin Fifth Cousin Once Removed Fifth Cousin Twice Removed Fifth Cousin Three Times Removed
8 5th Great Grandchild 4th Great Grand Niece / Nephew First Cousin Five Times Removed Second Cousin Four Times Removed Third Cousin Three Times Removed Fourth Cousin Twice Removed Fifth Cousin Once Removed Sixth Cousin Sixth Cousin Once Removed Sixth Cousin Twice Removed
9 6th Great Grandchild 5th Great Grand Niece / Nephew First Cousin Six Times Removed Second Cousin Five Times Removed Third Cousin Four Times Removed Fourth Cousin Three Times Removed Fifth Cousin Twice Removed Sixth Cousin Once Removed Seventh Cousin Seventh Cousin Once Removed
10 7th Great Grandchild 6th Great Grand Niece / Nephew First Cousin Seven Times Removed Second Cousin Six Times Removed Third Cousin Five Times Removed Fourth Cousin Four Times Removed Fifth Cousin Three Times Removed Sixth Cousin Twice Removed Seventh Cousin Once Removed Eighth Cousin











1. Select two people who have a common ancestor.
2. Select the relationship to the common ancestor on the top row for the first person and the relationship to the common ancestor in the left column for the second person
3. The relationship of the two people is in the box where the row & column intersect.
4. If the two persons descend from different spouses of the common ancestor they would be ½ relationship.







Baltimore County Genealogical Society