Sola was a PC played by Jim. The sister of Padme Amidala, Jim used her as a sock puppet to reaffirm his conviction that "Bubble" was the bad guy behind everything.
Silence of the Clones[]
While Anakin and Padme Amidala were on Naboo to investigate the stolen Peace Moon plans, Anakin suggested Padme take him to her home to meet her family. Padme did so and introduced Anakin to them; her sister Sola, her father Ruwee, and her mother Jobal. All any of them could talk about was how Bibble stole the plans and should be arrested to get it over with.
A New Generation[]
If Sola was still alive 22 years later and was living on Naboo, she was most likely killed along with everyone else on Naboo when Darth Vader ordered the planet's destruction with the Peace Moon's laser.