Brian Curvis, Welsh boxer (born 1937)

Brian Nancurvis, who fought under the name Brian Curvis as a professional, was a boxer from Swansea, Wales who was active from 1959 to 1966. He fought as a Welterweight, becoming British welterweight champion in 1960. He retired as undefeated champion and is the only welterweight to have won two Lonsdale Belts outright. The four defeats in his professional career were all to foreign boxers; he was never beaten by a British boxer.