The Order of Sant Jordi d'Alfama was a military order founded in 1201 by King Peter II of Aragon. Its original purpose was to support the resettlement of coastal area between the Coll de Balaguer and L'Ampolla, part of the Camp de Tarragona in Catalonia. This arid region was known at the time as Alfama, a toponym of Arabic origin. The order was dedicated to Saint George, whom the kings of Aragon regarded as their patron.
The Order of Sant Jordi was small. Its members were under the Rule of Saint Augustine until 1373, when Pope Gregory IX, at the request of King Peter IV, approved the Augustinian rules with customs specific to the order. The leader of the order was originally the quaestor of alms, later called the prior, commander and grand commander until the title of master was finally conferred in 1355. Royal influence, however, soon reached its peak.
In its first years, the order constructed a coastal castle, which was excavated by archaeologists in 1988. Under James I, the order took part in the conquest of Majorca (1229–1231) and the conquest of Valencia (1238). It was highly favoured by Peter IV and took part in his conquests of Majorca (1349) and Sardinia (1354) as well as his war with Castile (1356–1369).
Quaestor of alms ()
- 1201–1213 Joan d'Almenara
Prior
- 1225 Guillem Auger
- 1229 Guillem de Cardona
Commander ()
- 1233–1238 Guerau de Prat
- 1244–1254 Arnau de Castellvell
- 1286 Ramon de Guàrdia
- 1288–1303 Bernat Gros
- 1306 Domingo de Beri
- 1307–1312 Pere Guasc
Grand commander ()
- 1313–1316 Pere Guasc
- 1317–1327 Jaume de Tàrrega
- 1327–1331 Pere Guasc
- 1337–1339 Guillem Vidal
- 1341–1355 Humbert Sescorts
Master (, )
- 1355–1365 Humbert Sescorts
- 1365–1385 Guillem Castell
- 1387–1394 Cristóbal Gómez
- 1394–1400 Francesc Ripollès