The history of the Guild of Silver Larceners is tied to that of the town of Gimrun. Originally a medieval-era town, the town had been re-discovered and re-settled in E7-202 by a group of settlers, among which was Angelus Genvor, originally a librarian and historian from the town of [[Sirvarris]]. Genvor had discovered that the ancient, medieval library within the abandoned town was one of the four fabled Silverlight Libraries, much like that of Sirvarris. When the town was settled, he was appointed as the librarian once again.
The next year, in 203, Genvor had become obsessed with the newly discovered medieval-era books. There, he learned of the ancient Silverlight Kingdom, which had [[History of the Mazes|reigned dominant in the Mazes throughout Era 4]]. After gathering a group of faithful followers from the local Town Security and arming themselves with the plate armor and longswords found inside the library, Genvor staged a coup against the fledgling town's leadership, assassinating the mayor and former expedition leader, and threatening the other inhabitants with death if they do not swear their allegiance to him. Angelus Genvor renamed himself to '''Angelus Argentum''' and declared the formation of the '''Silverlight Guild''', appointing himself as the '''guildmaster''' (leader) and vowing to recreate the Kingdom and one day conquer the Mazes once again, an act he referred to as "uniting the world under a silver banner once more".
All leaders of the Guild have been mayors of [[Gimrun]] as well as descendants of Angelus Argentum, forming the Argentum Dynasty.