Saint Gregory the Illuminator or Enlightener (previously known as Grigor Lusavorich, c. 239 - c. 330 CE) was the first bishop of the Armenian church, and he is widely credited with converting king Tiridates the Great to Christianity, formally establishing the Armenian Church, and spreading that religion throughout his country. Saint Gregory is the patron saint of Armenia.
This is a companion discussion topic for the original content at https://www.worldhistory.org/Saint_Gregory_the_Illuminator/.