ancestor-math
What is pedigree collapse?
Pedigree collapse is the same ancestor filling more than one slot in your tree because two relatives had a child. Everyone has it; the math makes it certain.
Field notes
ancestor-math
Short, sourced answers to the questions that come up in every case: what a record proves, where it lives, and what to do when the trail goes cold.
ancestor-math
Are you really descended from royalty?
Almost certainly yes, if you have European roots, and almost certainly you can't prove it on paper. The math and the proof are two different questions.