ISS Constellation (ICC-1017)

The ISS Constellation (ICC-1017) was a Constitution-class heavy cruiser in service to the Terran Imperial Starfleet in the mid-to-late 23rd century. 
Captain Matthew Decker assumed command of the Constellation in the mid-2250s following Ran Armstrong's promotion to admiral. Under Decker, the Constellation was a participant in numerous conflicts with the Klingons, the Romulans, the Tholians and the Gorn. 
Following Decker's promotion to commodore in 2263, he retained command of the Constellation, but demanded that it be refitted and upgraded so that the ship would be more fitting for an officer of his rank and status. 
By the late 2270s, the Constellation had been extensively refitted and was still under the command of the now-Grand Admiral Decker. In 2277, the Constellation was one of a small task force of starships which were ordered to intercept and destroy the ISS Enterprise in the Terra Nova system. The ambush was aborted when Captain Spock willingly gave himself up and transported over to the Constellation to be taken prisoner by Decker. Unfortunately, Spock had conspired with Decker's first officer, Hiromi Takeshewada, and she staged a mutiny killing Decker in the process. 
Following Spock's ascension to Grand Admiral, he placed Takeshewda in command of the Constellation and dispatched them to the Klingon border. Following Spock's assassination a short time later, crewmembers who were loyal to Empress Hoshi Sato III staged a mutiny to remove Takeshewda from command but she triggered the ship's auto-destruct sequence. 
Despite the minor blotch in the ship's record, the bravery and loyalty displayed by the Constellation's crew led to Imperial Starfleet naming the following ships bearing the name Constellation to be named the flagship of the Empire, beginning with the ISS Constellation.