Arialdo da Carimate. Altar in the "Basilica di San Calimero" in Milan
|Deacon and martyr|
|Died||June 27, 1066
Isolino Partegora, Lago Maggiore
|Venerated in||Roman Catholic Church|
|Major shrine||Cathedral of Milan|
|Attributes||Depicted in the vestments of a deacon, holding the palm of martyrdom|
Arialdo was the child of a noble family, born at Cutiacum (Cucciago), near Como. After studying in Laon and Paris, he was made a canon in the cathedral city of Milan. According to Andrea da Parma, abbot of San Fedele di Strumi, who wrote a Vita concerning Arialdo, the church in Milan was rife with immoral clerics, fornicating, sleeping with prostitutes, lending money, and selling indulgences. According to Henry Charles Lea. marriage was common place among the Milanese clergy.
Together with Bishop of Lucca Anselmo da Baggio (later Pope Alexander II), Arialdo headed the pataria, a movement that sought to reform Milan's simoniacal clergy. Due to this, he was excommunicated by the Bishop of Milan Guido da Velate. Pope Stephen IX removed the excommunication and Arialdo returned to Milan to continue his efforts towards reformation. In 1069 the Pope sent Peter Damiani as legate to attempt a resolution. The issue then became less a matter of clerical conduct than the authority of Rome over Milan. Damiani was able to demonstrate that the city's beloved patron St Ambrose had acknowledged the precedence of the papacy.
Eventually, these endeavours lead to bishop Guido da Velate's excommunication. While traveling to Rome, Arialdo was set up by emissaries of Guido and killed.
Ten months after the assassination, his body was found in Lago Maggiore (allegedly in a perfect state of preservation, and emitting a sweet odour). It was carried to Milan and exposed in the church of St. Ambrose from Ascension to Pentecost. Subsequently, Arialdo's body was interred in the church of St. Celsus, and in the following year, 1067, Pope Alexander II declared him a martyr.
- Benigni, Umberto (1911). "Archdiocese of Milan". The Catholic Encyclopedia Vol. 10. Robert Appleton Company. Archived from the original on 25 September 2010. Retrieved 31 August 2010.
- Lea, Henry Charles. An Historical Sketch of Sacerdotal Celibacy in the Christian Church, J.B. Lippincott, 1867
- Campbell, Thomas (1907). "St. Arialdo". The Catholic Encyclopedia Vol. 1. Robert Appleton Company. Retrieved 31 August 2010.
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