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Diego's Mother, or Tía, named as Sabrina Márquez de León (née Beltrán) is Diego, Alicia, and Daisy's mother who first appeared in Season 4 of Dora the Explorer and as a supporting character in Go, Diego, Go!. She is also the aunt of Dora and her siblings, Isabella and Guillermo.

She was voiced by Olga Merediz in Diego Saves Baby Humpback Whale, then by Karen June Sanchez in all further appearances in Go, Diego, Go! and before all that by Socorro Santiago in the Dora the Explorer episode Catch the Babies,


Just like Diego's father, Diego's mother has phrases that encourage her son, such as "No hay que darse por vencido" (You must never give up) and "Nada puede separar a la familia" (Nothing can keep family apart).

She appears to love her husband a lot because she is almost always seen holding hands with her husband. She really loves Diego and encourages her son on his animal rescues. The two worked together on a fierce animal rescue in Fiercest Animals.


In Go, Diego, Go!, Diego's mother has peach-brown skin, brown eyes, and brown hair. She wears a yellow shirt with a tan vest, khaki cargo shorts, and blue shoes.

In the main series (Dora the Explorer), she wore a purple t-shirt with a dark purple trim, magenta capris, and matching slippers.