In Harry Potter, what was the name of Teddy Lupin’s maternal grandmother?

Question: In Harry Potter, what was the name of Teddy Lupin’s maternal grandmother?

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Andromeda Tonks.

Teddy Lupin’s maternal grandmother was Andromeda Tonks (née Black). Teddy Lupin was the son of Nymphadora Tonks and Remus Lupin. Andromeda Tonks was Nymphadora’s mother. Despite being born into the pure-blood Black family, Andromeda chose to marry a Muggle-born wizard, Ted Tonks, which led to her being disowned by the rest of her family.