What is masculine of dame?

Damsel is an obsolete or literary Word for a young girl or woman, unmarried, usually in the juvenile or teenaged bracket. There was a poem by Christina Rosetti called (The Blessed Damsel) I wonder who it was about. By definition it could not be St. Mary as she is the Blessed Mother, and a damsel could not be married. My Guess it was Joan of Arc but I am not sure. A damsel is a young girl, Mademoiselle is a related, still current term for (miss) in French.