Élise Lafleur

Èlise was a smuggler operating in the Louisianan Bayou, who came into contact with the Assassin Aveline de Grandpré from at least 1765.

During this time, she provided a canoe for Aveline to use, so that the Assassin could navigate her way through the marshy region and take out a contingent of Mackandal's men.

Personality and characteristics
Èlise was a sardonic individual, who commented on the nature of Aveline's parentage as being "gentle breeding", implying that the Assassin could not handle the rough terrain of the Louisianan swamps.

Despite this, she had a whimsical side, stating that she would prefer to be mentioned as "Queen of the Bog, Protector of Innocents, Paddling Instructor, and Champion of Trade", despite the title presumably being too long to fit on a wanted poster.

Source

 * IGN: Gamescom 2012 - Assassin's Creed III: Liberation - A Faithful Acolyte (Alternative Run)