Galaphile Dupar was born to Ullus and Nene Dupar on the planet Kyandria in 2 BBY. He had three siblings: Gaidal, Dismal, and Kai Dupar. The four Dupar children were born during a conflict which came to be known as the Seventh Clan War, where the reigning Chancellor was attempting to seize complete control of the planet.
Ullus and Nene were not exactly rich, so they could not afford to leave their small agricultural estate in Kalessa (an important spaceport city in the Tenkai region of Kyandria), where the war struck most. Ullus was a bureaucrat who did the dull and tedious job of distributing spaceport visas and corresponding documents, while Nene stayed at home to watch her children and oversee the farm. The small couple feared the fate of Kalessa, especially with four small children running around. Over time, though, the children started to take an interest in warfare, Galaphile was especially interested in the arts of weaponry. Having the valuable ability to spot any kind of weapon, name it, which company it came from, and all the other synopsis of the weapon.