08/31/2026
Because I am asked often
First Cousin Once Removed (1C1R)
A first cousin once removed indicates a one‑generation difference between two relatives:
Down one generation: Your first cousin’s child is your 1C1R.
Up one generation: Your parent’s first cousin is also your 1C1R.
This “removed” label simply marks the generational offset.
dna-explained.com
dna-explained.com
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Why “Removed” Exists
“Removed” means the two people are not in the same generation. First cousins share grandparents; once removed means one person is a generation above or below that level.