Bellemere was Nami and Nojiko's adoptive mother, seen in a flashback during the Arlong arc.
A former Marine, Bellemere came across Nojiko and Nami in the ruins of a town in the aftermath of a great battle. She decides to leave the Marines and raise them as her daughters, in order to get away from the death and destruction of Marine life.
When Arlong arrives at her island, Bellemere is the only person to fight back with any degree of success. However, she's caught off-guard by the fishmen's strength, and allows Arlong to kill her in exchange for Nojiko and Nami's safety.
Ahoooy mateys!!! While Luffy continues his quest of becoming Pirate King and finding One Piece, why not holster your sails and gather your nakama and head out to the Grand Line to fill your One Piece collection with these 5 figures that could be from Gol D. Roger’s personal collection.