Why is a cardigan called a cardigan?

During the Crimean war, there was a British military leader named Lord Cardigan. He was the one who led his countrymen into the charge of the light brigade. This was a foolish battle and he lost most of his men, but he wore a garment that had no collar, was long sleeved and buttoned down the front. When he returned to London textile workers began making a garment with the same characteristics. They called it The Cardigan.