A human Serennian female from the planet of Serenno in the Outer Rim Territories was the sibling of Serennian Duke Solha. After Solha broke away from the Galactic Republic, he aligned himself with Count Dooku's Confederacy of Independent Systems. Ultimately, the leader of the Confederacy, Count Dooku, sent Solha and his sister, along with their brother, to the planet Mokivj located in the Outer Rim Territories. This world was known for its mining and processing of cortosis, a metal capable of deflecting [blaster](/article/blaster] fire and disabling lightsabers. Around 19 BBY, the family continued to process and manufacture cortosis to produce Cortosis B2 super battle droids for use in the Clone Wars, the conflict between the Confederacy and the Republic.
In response to Handmaiden Duja's investigation into the Separatist presence on Mokivj, Solha had her killed on the nearby world of Batuu to safeguard the secrecy of the Mokivj droid factory. However, Senator Padmé Amidala of Naboo, Duja's former employer, tracked her to Batuu and disappeared from the Republic for a period of weeks. This disappearance led her husband, Jedi Knight Anakin Skywalker, to search for her, which eventually led him to Solha and his factory. Upon discovering the factory, Skywalker and Chiss Senior Captain Thrawn, who had joined forces with the Jedi, infiltrated it and defeated Solha and his siblings, leading to the destruction of the factory and devastating Mokivj's farmland and natural habitats.
The sister of Serennian Duke Solha and another male individual, was a human female native of the planet Serenno located in the Outer Rim Territories. After Solha's defection from the Galactic Republic, she and her brothers joined the Confederacy of Independent Systems led by Serennian Count Dooku and served in the government's military.
Around 19 BBY, Dooku sent Solha to the world of Mokivj, where he oversaw workers mining and processing cortosis, a metal that deflected [blaster](/article/blaster] bolts and powered down lightsabers. At Mokivj, the duke designed and manufactured cortosis B2 super battle droids within the Mokivj droid factory. Eventually, Solha's siblings joined Solha at the factory. Following Naboo Handmaiden Duja's investigation on the Separatist presence on Mokivj, Solha had her killed on the nearby planet Batuu in an attempt to keep the Mokivj droid factory secret. However, Senator Padmé Amidala of Naboo, who had been served by Duja ultimately followed her trace to Batuu and went missing from the Republic for weeks. Her disappearance prompted her husband Jedi Knight Anakin Skywalker to follow her, eventually finding Solha and his factory. Following the discovery of the factory, Skywalker and Chiss Senior Captain Thrawn who had teamed up with the Jedi infiltrated it and saw Solha's siblings speaking with some workers next to a speeder truck. Shortly after, however, Solha had both infiltrators imprisoned as he believed a rogue Jedi was present at the factory following his discovery of the factory's doors being damaged by a lightsaber, the weapon of a Jedi.
Ultimately, the infiltrators escaped and sieged the factory with Amidala, who teamed up with them in an attempt to defeat Solha. The duke, and his siblings, now alert of the chaos in his factory, donned cortosis clone trooper armor to defend themselves from the Jedi, and led droid forces in the defense of the factory. The Serennian siblings met at the production line for the cortosis battle droids, and removed their helmets. Sometime after, Solha's siblings left to defeat Skywalker's siege and the duke was left alone with a droid escort. However, Skywalker and Thrawn stopped the battle droid campaign to defeat them, and following Amidala's attack on Solha, destroyed the Serennian factory.
The sister of Solha was seen wearing a Serennian cloak, and later put on [clone trooper armor](/article/clone_trooper_armor] reinforced with cortosis to shield herself from Jedi Knight Anakin Skywalker.
The sister of Solha made an appearance in the 2018 novel Thrawn: Alliances authored by Timothy Zahn, which is the second book in the Star Wars: Thrawn series.