S. Caterina Vecchia Was a dependency of S. Caterina off and on beginning in the late fourteenth century. On March 17, 1487, Pope Innocent VIII united the two houses, but S. Caterina detached itself around 1590 and elected its own abbess in 1595. S. Caterina incorporated S. Maria Maddalena from 1810-15, and again in 1865, but the two communities were not definitively united until 1883.
In 1351 the nuns were declared not honest or chaste because they were not well cared-for by their guardians. The Magistry dismissed all ministers and gave the guardianship to two priors with rights to chastise the nuns. In 1382, the commune invited Benedictine nuns under the direction of S. Caterina Vecchia to take over.
In 1409, the nuns requested and were given permission from Alberto del Ponte Nuovo and the commune to enlarge the church and living quarters.
The community received alms in 1382, 1451 (10 basketsful of grain) and 1503.
Annali della chiesa perugina dall'anno di Christo N.S. fino all'anno 1590, pp. 357, 361 and 385;
Répertoire topo-bibliographique des abbayes et prieurés, c. 2254;
Indice degli annali ecclesiastiche perugini tratto dalla Cancelleria Decemvirale, pp. 392, 396, 410, 413, 450 & 461;
Memorie storiche delle chiesi della città di Perugia, pp. 40-41 & 101;
Monasteri sotto la regola benedettina a Perugia e dintorni, pp. 245-46;
Descrizione topologico-istorica della citta di Perugia ..., p. 536;
Ricordanze del Monastero di S. Lucia osc. in Foligno (cronache 1424-1786), part. 4,7, pp. 487 & 522
