The sword in the stone at Montesiepi Chapel
The sword in the stone can be seen at the Rotonda at Montesiepi, near the ruins of San Galgano Abbey. The handle of a sword protrudes from the ground, and is said to be the sword of San Galgano.
A round church was built over the purported tomb, where pilgrims came in large numbers and miracles were claimed. In that year Cistercian monks took over Monte Siepi at the request of Hugh, bishop of Volterra, but most of Galgano's monks left, scattered over Tuscany, and became Augustinian hermits. By 1220 a large Cistercian monastery was built below Galgano's hermitage: they then claimed him as a Cistercian saint. His cult was lively in Siena and Volterra, where numerous representations survive. The ruins of his hermitage can still be seen, while his cloak is kept in the church of Santuccio at Siena.
- His alleged date of death is December 3, 1181, but other scholars assign it to November 30, 1180. The Roman Catholic Church celebrates Saint Galgano on November 30, as ordered in 2004 by Pope Johannes Paul II.
- As reported by A. Vauchez in "La santità nel medioevo", Il Mulino, Bologna, 1989
- Inquisitio in partibus, transcribed by Sigismondo Tizio in Historiae Senenses and transcribed in "Analecta Toscana IV; Der Einsiedler Galgano von chiusino und die Anfange von San Galgano" by Fedor Schneider (1914-1924).
- Codice Laurenziano, 14th century
- Codice di Siena, 15th century
- Biblioteca Apostolica Vaticana, cod. Chigi M. V. 118, 15th century.
- Codice di Veroli, 15th century.
- Codice Laurenziano, 15th century.
- Dhwty, 
- Oxford Dictionary of Saints/David Hugh Farmer 1997 Oxford University Press