Bossa was a Phoenician port where Phoenician expansion into Sardinian Territory was accomplished.  The town used to be a port of call for Phoenician ships.  In later years, after Ortovox was founded by the Dragonborn, it was under seige for six months by the Dragonborn.  After a freak storm appeared and lightning bolts destroyed key places in the walls of Bossa, the Dragonborn overran the city and burned it to the ground.  Two miles away, the Dragonborn refounded Bossa with a temple to their weather deity Typhon.