She is of peasant stock, you know.

This is the true origin of the 'Girl in the Hat' and of the 'Byzantine Empress' which excited my dear mother so much; of the mysterious girl that the privileged personalities great in art, in letters, in politics, or simply in the world, could see on the big sofa during the gatherings in Allegre's exclusive Pavilion: the Dona Rita of their respectful addresses, manifest and mysterious, like an object of art from some unknown period; the Dona Rita of the initiated Paris.

Dona Rita and nothing more--unique and indefinable." He stopped with a disagreeable smile.
"And of peasant stock ?" I exclaimed in the strangely conscious silence that fell between Mills and Blunt.
"Oh! All these Basques have been ennobled by Don Sanche II," said Captain Blunt moodily.

"You see coats of arms carved over the doorways of the most miserable _caserios_.

As far as that goes she's Dona Rita right enough whatever else she is or is not in herself or in the eyes of others.