Letter M as Marian Symbol

Q: Is there a particular rendition of the letter "M" which is commonly recognized as the symbol of Mary?

A: The letter M, and variants thereof, have commonly been used as Marian symbol. Some of the variants are M, MR, MAR, MRI, and the monogram of the theotokos in icons MP QU, which has the meaning of Mother of God.

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International Marian Research Institute

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