The Light Heavyweight Title (186 to 205 lb/84 to 93 kg) was known as the Middleweight Title prior to UFC 31 (May 4, 2001). The Pride World Middleweight Title (204.6 lb) was unified with the UFC Light Heavyweight Title on September 8, 2007. There have been 13 holders of this title (two repeats) in the the history of the Ultimate Fighting Championship. How many can you name?Clue given is the date the championship was won.Note: This list does not include holders of interim titles.