Sonia Ramirez is Gloria Pritchett's sister.

In "Fulgencio", she and her mother visit Jay and Gloria shortly after Joe is born. She appears to be wanting to get out of Colombia after a flood occurred there and later at Joe's christening, she and Gloria get into a fight over how Jay originally liked Sonia, not Gloria.

In "Valentine's Day 4: Twisted Sister", she visits her sister and her family and tries to make a move on Jay, only to be heard via a baby monitor and the sisters resume fighting.

In "A Tale of Three Cities", she kidnaps Manny in exchange of Gloria's hot sauce business after finding out her sister took the recipe. It was later realized that the competition over their father's approval was the cause of tensions between the two sisters for years.

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