Born at Castelfiorentino, Tuscany, of a noble family, somewhat impoverished but still prestigious, Verdiana was noted from an early age for her generosity and sense of charity. She made a pilgrimage to Santiago de Compostela. Upon returning to Castelfiorentino and feeling a desire for solitude and penance, she had herself walled up as an anchorite in a little cell contiguous to the oratory of San Antonio. She remained secluded there for 34 years under the obedience of a Vallumbrosan abbey (however, the Franciscans claim her as one of their tertiaries).
Like many recluses of her era, it is not certain whether Verdiana belonged to any particular monastic order. The Dominican order appropriated her after her death through the redaction of her vita, but probably belonged to none of the mendicant orders during her lifetime. One late account suggests that in 1221 she was visited by Francis of Assisi, who admitted her into his Third Order. It is more likely that she was associated with the local monastery in Castelfiorentino, which belonged to the Vallombrosan order, the economic success of which had so worried the bishops of Florence. Even this affiliation, however, most likely occurred after her death, as various monastic orders vied for “possession” of yet another popular saint..
From a little window she spoke to visitors and received an insufficient amount of food. Tradition holds that two snakes penetrated her cell in the last years of her life. These increased her mortifications of the flesh, but she never revealed their existence. Another local tradition holds that upon her death, the bells of Castelfiorentino began to ring unaided by any human hand, unexpectedly and simultaneously.
Her cult was approved by Pope Clement VII in 1533. Her feast day is February 1.
In the mid-fourteenth century Giovanni Boccaccio referred to Santa Verdiana in his Decameron:
“…si dimesticò con una vecchia che pareva pur santa Verdiana che dà beccare alle serpi…”
“…she made friends with an old beldam, that shewed as a veritable Santa Verdiana, foster-mother of vipers…”
- Giovanni Boccaccio, Decameron, gior. V, nov. X. (Trans. J.M. Rigg)
Professor of medieval history Anna Benvenuti (Dipartimento di Studi Storici e Geografici dell'Università degli Studi di Firenze) has devoted considerable space to the life and legend of Verdiana in her 1990 study of Italian female saints "In Castro poenitentiae". Santità e società femminile nell’Italia medievale, and discussed the Renaissance cult of Santa Verdiana in her 2000 article "Capi d’aglio e serpenti; aspetti del culto civico per santa Verdiana a Castelfiorentino".
Giacomini, Lorenzo. Acta Sanctorum. Feb. I, pp. 257-61. “Verdiana.” (c. 1420)
Benvenuti, Anna. “Capi d’aglio e serpenti: Aspetti civici del culto di santa Verdiana di Castelfiorentino,” La Toscane et les Toscans autour de la Renaissance: cadres de vie, société, croyances: mélanges offerts à Charles-M. de La Roncière. Aix-en-Provence: Publications de l'Université de Provence, 1999. pp. 313-349.
Benvenuti, Anna. «In Castro Poententiae» Santità e società femminile nell’Italia medievale. Rome: Herder Editrice e Libreria, 1990.
Benvenuti, Anna. “Mendicant Friars and Female Pinzochere in Tuscany: From Social Marginality to Models of Sanctity.” Women and Religion in Medieval and Renaissance Italy. Ed. Daniel Bornstein and Roberto Rusconi. Trans. Margery J. Schneider. Chicago: University of Chicago Press, 1996. pp. 84-103.
Benvenuti, Anna. Pastori di Popolo: Storie e leggende di vescovi e di città nell’Italia medievale. Firenze: Arnaud Editore, 1988.
Del Re, Niccolò. “Verdiana.” Bibliotheca sanctorum. 12 vols., Rome: 1961-9., XIII, col. 1023-1027.
Improta, Maria Cristina. La Chiesa di Santa Verdiana a Castelfiorentino. Castelfiorentino: Comune di Castelfiorentino, 1986.