MANGIACOTTI, Margaret “Auntie”, age 76 of Roslindale, formerly of Mission Hill, March 28, 2017. Loving daughter of the late Felix and Margaret (Davis) Mangiacotti. Devoted sister of Michael of Brockton, Daniel of Quincy, Mary Petroski of NH, Regina McConoghy of Roslindale and the late Gerard and Joseph. Also survived by many nieces, nephews, grandnieces and grandnephews. A Celebration of Life will be held at St. John Chrysostom Church on Monday, April 3rd at 10 am. Relatives and friends kindly invited to attend. In lieu of flowers donations may be made in her memory to The Jimmy Fund, 10 Brookline Place West, 6th Fl. Brookline, MA 02445 or jimmyfund.org.