Brock's mother who specializes in training water type Pokemon.
Lola is Brock's mother who makes her debut in Pokemon Chronicles; she specializes in Water Pokemon. In Pokemon Chronicles "A family that battles together, stays together" Brock returns home to find that, Lola has decorated the gym and filled it with water. Flint, Brocks dad, and the current gym leader; loses to Lola and they decide to make the gym a dual type gym.
Brock protested this, and did battle with Lola, eventually she was defeated by Brock's onix.