The Brothers of Penitence or Friars of the Sack (Fratres Saccati) were an Augustinian community also known as Boni Homines or Bonshommes, with houses in Spain, France and England.
Matthew Paris records under this year that "a certain new and unknown order of friars appeared in London", duly furnished with credentials from the Pope; and he mentions later that they were called from the style of their habit Fratres Saccati.
to suggest that the Fratres Saccati were the order quite soon afterwards established at Ashridge (Hertfordshire) and Edington (Wiltshire), though this was repudiated in a 1943 article in the journal Speculum by Richard Emory, who attributes the original connection to Helyot's Dictionnaire des Ordres Religieux, compiled in Paris in the mid-19th century.
The members in Italy joined the Bonites, founded by John Buoni, which in turn became part of the new mendicant order, the Hermits of Saint Augustine, established in 1256 by Pope Alexander IV with the papal bull Licet Ecclesiae catholicae.
[7] Queen Eleanor took the "Sac-Friars" under her protection and gave them land and a building on Colechurch Street in the City of London, in the parish of St Olave's Church.