The thread connecting many of the works in the Basilica dell’Osservanza is the devotion to Saint Bernardino and the Franciscan saints. The painting by Pietro di Giovanni d'Ambrogio in the third chapel on the right with the great Sienese saint in the centre is particularly significant as it was made in 1444, the year of his death. The image, one of the very first paintings of St Bernardino, can . . .