Nyna Calixte's living quarters existed on the world of Coruscant. At some point following the extraction of Her Highness Marasiah Fel from Korriban in the year 138 ABY, Imperial Regent Morlish Veed spent an evening in that location with Moff Nyna Calixte.
Veed, having soon realized that Moff Calixte was actually a secret agent for Emperor Roan Fel, gained entry to her apartment feigning belief that Konrad Rus, leader of the Imperial Mission, was the agent and offered Calixte a celebratory beverage. She, however, swiftly realized the drink contained poison, and a firefight ensued. The altercation concluded with Calixte plummeting from her balcony, apparently meeting her end.