Dina Bosatta was born in 1858 in
Como to Alessandro Bosatta and Rosa Mazzocchi – her father worked as a silk manufacturer who died in 1861 when she was but a toddler. She was the last of eleven siblings and one sister was Marcellina. She studied with the
Daughters of Charity at the age of thirteen in 1871; she also took work as a janitor around this time. She decided to consecrate her life to
God and made the decision to become a nun so entered into the period of novitiate with the
Canossians from 1871 to 1878; however she felt that their charism was not that of which she felt she was being called to and so left that congregation to pursue her vocation elsewhere. Despite this she was enthralled with their charism nonetheless and admired their spirit and strong dedication to their rules of life. Bosatta returned to her home and joined with her sister Marcellina and the two joined the Daughters of Mary that Carlo Copponi had established; Marcellina would later become the superior of the order. The pair also worked at a hospice to tend to neglected children and older people as well as teaching children. The pair coordinated efforts at establishing a new religious congregation – the
Daughters of Saint Mary of Providence – alongside
Luigi Guanella. It was at this point that she took the religious name of "Chiara". She was professed as a
nun on 27 October 1878. Tending to the poor bought unwanted consequences for Bosatta when she contracted
tuberculosis – this disease would remain with her until the end of her life. Bosatta died on 20 April 1887 of tuberculosis. She had suffered with the disease more than in the past in the autumn of 1886 and relocated back to her hometown hoping that a change of climate would benefit her. ==Beatification==