His name in French is Pierre l'Ermite.
The structure of this name in French unlike in English has led some francophone scholars to treat l'Ermite as a surname rather than a title.

According to some authors, he was born around 1050 and was the son of Renauld L'Ermite of Auvergne, and his wife  Alide Montaigu, de Picardie.
Others claim he was a member of the L'Hermite family of Auvergne in the Netherlands.
These claims are disputed by other authors, who argue that nothing can confirm that "the Hermit" was an actual surname and that surnames had not developed until after his day.
His name in French is Pierre l'Ermite. The structure of this name in French unlike in English has led some francophone scholars to treat l'Ermite as a surname rather than a title.
According to some authors, he was born around 1050 and was the son of Renauld L'Ermite of Auvergne, and his wife  Alide Montaigu, de Picardie. Others claim he was a member of the L'Hermite family of Auvergne in the Netherlands. These claims are disputed by other authors, who argue that nothing can confirm that "the Hermit" was an actual surname and that surnames had not developed until after his day.
Peter the Hermit