Joe Calzaghe, a former professional boxer, is of Welsh nationality. He was born on March 23, 1972, in Hammersmith, London, England, but he grew up in Wales and proudly represented Wales throughout his boxing career. Calzaghe is widely regarded as one of the greatest British boxers of all time, having held multiple world titles and retiring undefeated with a remarkable record of 46 wins and 0 losses. His achievements in the sport have earned him great respect and admiration from fans and the boxing community.