<p>Matthew and Mary were 3rd cousins, as I understand it. Yeah, it seems a bit weird today. But it was often okay to marry even your 1rst cousin back then. It was often a way for a group to keep all marriages within their own circle. Just look at Harald, the king of Norway. Not only did his parents just happen to be 1rst cousins, but so did his paternal grandparents <i>and</i> his maternal grandparents. Ouch...
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