In 1443, the monastery was ruined, and the nuns entered the community of S. Maria del Feriale.
Nuns ran a hospital, also named S. Basilio.
[1] 1282: Nuns are present in the church of S. Basilio when Mancino di Gherardo di Colle, citizen of Castel de' Sorei, made restitution to the nuns of four "libri di denari" that had been let to him "sub pena dupli." // [2] 1292: Domina, daughter of Jacomo Sinibaldi, inherited land from her husband, Antonio Schiari, and gave two pieces of land to the monastery. // [3] July 1340: in the book "De Eleemosynis et Oblationis," the monastery was to receive 10 libras annually.
Città di Castello, Archivio della cancelleria vescovile (RCV), vol. 7, fol. 19 bis, v., and fol. 140 r.
Memorie ecclesiastiche e civili di Città di Castello, vol V., p. 59-60.