Joseph Benedict Cottolengo was born 3 May 1786 into a middle class family, in Bra, then in the Kingdom of Sardinia. The eldest of twelve children,, on 2 October 1802 he became a Franciscan tertiary. In 1805 he entered the seminary at Asti. Two years later it was closed, and he was forced to continue his studies at home. Cottolengo was ordained a priest 8 June 1811. Assigned as a curate to Corneliano D'Alba, he completed his doctorate in theology in Turin and in 1818 was accepted as a canon of the Basilica of Corpus Domini in Turin. Canon Cottolengo donated all his gifts, donations, fees for preaching, and Mass stipends to the poor. At the time, Turin was still recovering from the French occupation and under the pressure of intense immigration from the countryside, which caused serious social problems and poverty. The city was rife with pauperism and beggary, illiteracy and recurrent epidemics, numerous illegitimate births and high infant mortality. At the age of forty-one, after reading the life of St. Vincent de Paul, he came to understand that his true vocation was that of charity. At this time Cottolengo attended a family traveling from Lyons to Milan. The pregnant mother was ill and was not accepted at the Maggiore Hospital because she had tuberculosis. Neither could she go to the maternity hospital because she was ill with fever, and the regulations proscribed admitting anyone who might be infectious. Cottolengo gave the mother last rites and baptized her child before it died. Affected by the scene and the cries of her surviving children, Cottolengo went and sold everything he owned, including his cloak, and rented two rooms. He began his new work on 17 January 1828, offering free accommodation to an elderly paralytic. Before long the premises turned into a hospitality center for people who were not accepted in hospitals. He came to be assisted by Doctor Lorenzo Granetti, pharmacist Paul Royal Anglesio and twelve "Ladies of Charity", under the direction of the rich widow Marianna Nasi, who visited the sick. When cholera broke out in 1831, the small hospital was closed by the authorities as a precaution for fear of contagion. Cottolengo then bought a house in Valdocco, on the outskirts of the city, and relocated there with two nuns and a patient suffering from cancer. This was the beginning of the "Little House of the Divine Providence". Due to the generosity of a number of benefactors, especially the Cavalier Ferrero, he was soon able to establish an orphanage. He also founded monasteries, convents, communities of priests, communities of brothers, and organised groups of lay volunteers. His legacy of charity stands today at the heart of Turin city as a sign of what it means to love and serve others in an evangelical way. Today Cottolengo Fathers, Sisters, and Brothers still work together in activities focused on communicating God's love for the poorest. They are spread out all over the world: Ecuador, India, Italy, Kenya, Switzerland, Tanzania and the United States. Don Cottolengo contracted typhoid while assisting his patients and died in Chieri, Piedmont on 30 April 1842. Cottolengo was beatified by Pope Benedict XV in 1917, and was canonized by Pope Pius XI in 1934. His feast day is celebrated on 30 April. Joseph Benedict Cottolengo was enlisted among the saints of charity by Pope Benedict XVI in his encyclical Deus caritas est. The parish of Saint Joseph Benedict Cottolengo is located in Grosseto, Italy. There is a Via San Giuseppe Benedetto Cottolengo in Pisa. One of the most important charity institutions in Central Brazil is the Sao Jose Bento Cotollengo Institute, in Trindade, state of Goias.
In the 2006 Italian filmUna cosa in mente. Giuseppe Benedetto Cottolengo, Cottolengo is played by Massimo Wertmüller. St. Joseph is a character in Bruce Marshall's book The Divided Lady.