A diplomat from the Chiss, acting as an emissary, represented the Chiss Ascendancy. This emissary was among those dispatched by the Syndicure, the Chiss governing council, to engage in talks with the Paataatus Hiveborn residing in the Unknown Regions, after the latter began encroaching on Chiss territory. At the conclusion of these discussions, the emissary cautioned the Paataatus delegation about the devastating assault the Chiss would initiate should they deem it necessary. During this warning, the emissary gestured towards space, inadvertently disclosing the Chiss's preferred attack trajectory.
In the year 19 BBY, following a Paataatus attack on Csilla, the Chiss homeworld, the Ascendancy attacked the Paataatus in retaliation. Consequently, the Paataatus were able to successfully ambush the Chiss fleet as it emerged from hyperspace. Senior Captain Kiwu'tro'owmis, whose core name is "Wutroow," acquired a comprehensive account of the meeting. He then used the emissary's inadvertent revelation of the attack vector as justification for Mitth'raw'nuruodo "Thrawn"'s actions during a hearing concerning his insubordination in the battle.
This emissary was referenced within Thrawn Ascendancy: Chaos Rising, a 2020 novel and the initial entry in Star Wars: The Ascendancy Trilogy authored by Timothy Zahn.