Mary's grandmother

Mary's grandmother is a character appearing in Pokémon: Advanced Challenge.

Season 7: Advanced Challenge
The heroes visited a village, which was affected by the drought. Once Brock's Lombre evolved, the villagers, including Mary's grandma was glad "the water lord" came to their village, since they believed Lombre would end the drought. Her daughter believed there is a scientific explanation why there is the drought, but her grandma did not listen to her. Instead, she wished Lombre would drive away Solrock, which the villagers believed it was the cause of the drought. Regardless, the villagers gathered around Lombre and performed a rain dance. While May and Mary went off to find Skitty, the villagers watched as Lombre's dancing attracted Solrock. The villagers thought it was a curse and attacked, but Solrock used Psychic to stop their attack. Team Rocket, who arrived in their machine, were attacked by Solrock, who used heat to negate their water attacks. After Team Rocket were blasted off and Solrock calmed down, the villagers were thrilled it started to rain. This caused Mary's grandma to change her faith to Solrock.