Hastur

From Memory Alpha, the free Star Trek reference.

Admiral Hastur was a 24th century Starfleet flag officer. In 2372, Hastur commanded a task force of six starships, led by the USS Venture, which was dispatched to help defend Deep Space 9 from Klingons during the First Battle of Deep Space 9. The task force also included two Excelsior-class ships and a Miranda-class ship. (DS9: "The Way of the Warrior")

Presumably, Hastur commanded the Venture, as the leading starship in the task force.