Patronage
2 saints are venerated as patrons of architects, led by Thomas the Apostle (feast day July 3).
1 — 72 · Feast day: July 3
Thomas — called 'Doubting Thomas' for demanding to touch Christ's wounds before he would believe — answered with the clearest declaration of Christ's divinity in the Gospels: 'My Lord and my God!' He carried the Gospel further east than any other Apostle, founding churches in Mesopotamia and, by tradition, India, where he was martyred around AD 72.
482 — 565 · Feast day: November 14
Born to Illyrian peasants around 482, Justinian rose through his uncle Justin I's patronage to become Byzantine Emperor in 527. He commissioned the codification of Roman law into the Corpus Juris Civilis, rebuilt Constantinople after the Nika Riots, and consecrated the Hagia Sophia in 537. His generals Belisarius and Narses reconquered North Africa, Italy, and part of Spain, briefly restoring Roman rule across the western Mediterranean.