My cat had the same name! We gave him the name because he was a completely black cat with just a singular white hair on his chest and as a sort of play on the common superstition that black cats are a sign of bad luck. We had to put him down last year due to acute leukemia but we had a great 15 years together.
Sorry to hear about your cat. My cat is named lucky because she was a stray cat that happened to come to my yard when she was a kitten and never left and thought at the time that she was lucky to have found us. 10 years later we are sure we were the lucky ones.
Aww, lovely cat! I bet that white chest and belly fur is just the softest stuff ever!