Blackbeard

Blackbeard was one of the Minions' former masters.

Minions
At some point, Blackbeard became the Minions' master. He was eventually killed by a shark. The Minions were then forced to find another master.

Trivia

 * This pirate (and the Minions appearing as pirates) never appeared in the film. One of the people working on the film stated that it was because of time issues. The only reason we know the whole pirate theme existed was because of the various merchandise released on the Minions being pirates. This pirate's only appearance was in a picture on one of the Micro Minion Playsets. Although not seen in the film, we know this pirate was either killed by a shark or left the Minions, as they had a different master in present day. As seen in the photo two minions Finn and James were probably fishing and they got a shark in their bait when they crashed into his ship and the two minions did not get control and it jumped and ate him.
 * Despite not appearing in the film itself, he physically appeared in the Post-credits where he appears on the left dancing with the characters that were present in the film.