Mary Seton (Before 1549- d.1615) was the daughter of George Seton, 6th Lord Seton, and Marie Pieris, Lady in waiting to Marie de Guise, consort of King James V of Scotland. As a child, Mary became a Lady in waiting to the future Mary Queen of Scots, along with three other girls of similar age and of a similar standing in Scots society. They were known as the "Four Marys"- Mary Seton, Mary Beaton, Mary Fleming and Mary Livingston. Wikipedia
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