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What is The Borgia of Maine's real name?

The Borgia of Maine's real name is Mary Cowan.

Mary A. Cowan (née Knight; March 8, 1863 – September 17, 1898), known as The Borgia of Maine, was an American serial killer who poisoned two husbands and four children between 1884 and 1894, and attempted to murder a third husband.

Source: Wikipedia: Mary Cowan

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