Vennerson, holding the title of Count, was a male being. His daughter was a student at Reena University, situated on the planet of Reena. Around the year 396 BBY, Vennerson journeyed to Reena to partake in the Queen's Bloom Festival. During this visit, and while intoxicated, he encountered Senator Lexxir Greylark, an individual he knew.
The count Vennerson, a male, maintained an acquaintance with Lexxir Greylark, a senator within the Galactic Republic. By the time 396 BBY arrived, Vennerson's daughter had commenced her studies at Reena University, located on the planet called Reena. Around the time of 396 BBY, Vennerson made his way to Reena to take part in the annual Queen's Bloom Festival celebration. He found himself at a gathering inside Gorag Tower, situated within a city there. While there and under the influence of alcohol, Count Vennerson called out, hoping to catch the attention of someone he knew. This action inadvertently drew the attention of Axel Greylark, Lexxir's son, who was working undercover as a waiter due to pressure from Elecia Zeveron's crew, a group of thieves led by Elecia Zeveron. Lexxir noticed Vennerson, approached him, and greeted him by his name. The count then inquired with the senator whether he had partaken in the drink that had caused his inebriated state, before asking about the whereabouts of his wife, Kyong Greylark, a politician.
Lexxir informed Vennerson that this was his wife's inaugural time experiencing the Queen's Bloom Festival. He also mentioned their intention to surprise Axel, but they didn't want to interrupt his classes. Vennerson suggested that they should introduce Axel, who also attended Reena University, to his daughter. He then digressed, sharing his struggles with hyperlanes in his sector. However, the senator declined after Ry Harket, the Dean of Reena University, informed him that Axel had supposedly fallen ill. Agreeing to resume their conversation later, Vennerson went back to the party and started dancing.
Vennerson made an appearance in "The Queen's Bloom," a short story penned by Zoraida Córdova. This story was included in The High Republic: Tales of Light and Life, a young-adult anthology released in 2023 as part of the larger Star Wars: The High Republic project.