Mother Teresa, the nun whose work with the dying and destitute of Kolkata made her a global icon of Christian charity, was made a saint on Sunday.

Her elevation to Roman Catholicism’s celestial pantheon came in a canonisation mass in St Peter’s square in the Vatican that was presided over by Pope Francis in the presence of 100,000 pilgrims.

“For the honour of the Blessed Trinity… we declare and define Blessed Teresa of Calcutta (Kolkata) to be a Saint and we enroll her among the Saints, decreeing that she is to be venerated as such by the whole Church,” the pontiff said in Latin.