Shak'ran was a System Lord, eventually defeated by Apophis about three hundred years ago (6.10 "The Cure"). Teal'c noted he was a warlord. Based upon writings in an old temple on Pangar, Pangar served as Shak'ran's homeworld until the time of his defeat.
The Pangaran archeologist Zenna showed the writings to Jonas Quinn and Teal'c, who helped explain more of the story. Later they discovered an even older section of writings, indicating that before Shak'ran took control of the planet, Pangar was ruled by Ra and used as the place of imprisonment for Egeria. Teal'c conjectured Shak'ran captured Pangar from Ra in battle.
--Aurora 21:42, 9 February 2008 (PST)