Byron is one of the slaves that was sold at the Auction House and was the first in the queue for sale.

He is from the town of Toroa in the West Blue and descended from a long line of musicians, he was able to play many instruments. He was also was a proud pirate and he apparently could also make a nice wine too.

A few details on his condition were issued such as that he was a young age of 25, was 192cm tall and weighed 130 Kilos. His starting bid was a mere 480.000 belli, while his final selling price was not revealed; he was sold at least for 550.000 belli.

(Source: One Piece Wikia)