There’s a women in the medical literature (I have read the original paper, but can’t lay my hands on it right now) who had multiple children & was discovered to be a 99% XY / 1% XX chimera IIRC.
(edit) This is probably the case paper I was thinking of: https://pmc.ncbi.nlm.nih.gov/articles/PMC2190741/ It was her ovaries that were 99/1% proportions. Other parts of her body had varying levels of mosaicism.
(edit) This is probably the case paper I was thinking of: https://pmc.ncbi.nlm.nih.gov/articles/PMC2190741/ It was her ovaries that were 99/1% proportions. Other parts of her body had varying levels of mosaicism.