Baltazar and Leon Bastralle were formerly infamous pirate captains. The two were childhood friends, having grown up in poverty together. As a child Baltazar had dreamt of becoming a merchant, and he soon realized his life as a pirate was backwards from that goal.
13 years prior to the events of Octopath Traveler, after confessing to Leon about his dream, Baltazar challenged Leon to a race. If Leon won, he would claim the Eldrite, and if he lost, he had to give Baltazar "his most precious treasure." Leon lost the race; however, Baltazar died, his ship wrecked on the coast. Leon cast off his life as a pirate and rebuilt Baltazar's ship, becoming a merchant in his stead.
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- According to Leon, Victors Hollow was Baltazar's home.
- When Baltazar faces forward or to the left, his eyepatch is on his right eye. However, when he faces to the right, his eyepatch is on his left eye.