In FF, it says there is a 4th cousin relationship.

So, in a conventional family, where cousins share two grandparents, that would be two people who share g1g2g3g4gparents.

However, if you only share one grandparent, when you have a 4th cousin show up in FF, would you then be sharing a single g1g2gparent?

So if we assign 25 years to a generation, in the case of half-cousins, it is 100 years back, but in the case of full cousins, it would be 150 years or so?

Can someone give me a more repcise understanding of this?

I am trying to figure out about where in family trees I should be looking for the most recent common ancestor.

Thanks!

So, in a conventional family, where cousins share two grandparents, that would be two people who share g1g2g3g4gparents.

However, if you only share one grandparent, when you have a 4th cousin show up in FF, would you then be sharing a single g1g2gparent?

So if we assign 25 years to a generation, in the case of half-cousins, it is 100 years back, but in the case of full cousins, it would be 150 years or so?

Can someone give me a more repcise understanding of this?

I am trying to figure out about where in family trees I should be looking for the most recent common ancestor.

Thanks!

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