Fra Bartolomeo or Bartolommeo OP, also known as Bartolommeo di Pagholo, Bartolommeo di S. Marco, and his original name Baccio della Porta, was an Italian Renaissance painter of religious subjects. He spent all his career in Florence until his mid-forties, when he travelled to work in various cities, as far south as Rome. He trained with Cosimo Roselli and in the 1490s fell under the influence of Savonarola, which led him to become a Dominican friar in 1500, renouncing painting for several years. Typically his paintings are of static groups of figures in subjects such as the Virgin and Child with Saints.
He was instructed to resume painting for the benefit of his order in 1504, and then developed an idealized High Renaissance style, seen in his Vision of St Bernard of that year, now in poor condition but whose "figures and drapery move with a seraphic grace that must have struck the young Raphael with the force of revelation".
He remained friends with Raphael, and each influenced the other.
His portrait of Savonarola remains the best known image of the reformer.