(fl. 1261–d. 1309).
Master-mason, probably from Piedmont, in charge of the construction of King Edward I's (reigned 1272–1307) chain of fortresses in North Wales. Saint-George superintended the building of Flint and Rhuddlan Castles, and probably designed Aberystwyth and Builth Castles (1277–82). He then designed the town walls of Conway, Caernarfon, and Denbigh (begun 1282–3), and the Castles of Conway and Harlech. To judge from his rates of pay, he was obviously held in high esteem, and in the 1290s he began to build Beaumaris Castle, Anglesea. By 1302 he was involved in securing the English stronghold of Linlithgow, Scotland, and may have designed the gatehouse at Kildrummy Castle (1303). He was probably in the service of the Counts of Savoy in the 1260s before coming to England.
J. Harvey (1987)