Maamane's Mother

Sophocles's mother is a recurring character who first appeared in SM019.
She lives in a house in Hau'oli City together with her husband and son. Sophocles brought Ash home with him and introduced him to his parents.
She appeared again in SM024 where she and her husband visited Sophocles at the Pokémon School as part of the Visiting Day. She was seen chatting with Delia.
She appeared again in SM026.

(Source: Bulbapedia, edited)