Married lay woman. Widow. Tertiary of the Holy Humility of Mary. She devoted her life to personal penance and charity to the poor, was given to religious ecstasies, and received visions. Greatly honoured in Siena, Italy.
- Book of Saints, by the Monks of Ramsgate
- Catholic Online
- Dictionary of Saints, by John Delaney
- Our Sunday Visitor’s Encyclopedia of Saints
- “Blessed Alda of Siena“. Saints.SQPN.com. 1 March 2014. Web. 7 March 2014. <>