In October 2012, Disney confirmed that Sofia is their first Hispanic princess. According to a Disney spokeswoman, "...Sofia's mother, Queen Miranda, was born in a fictitious land, Galdiz, a place with Hispanic influences. Miranda met Sofia's father, Birk Balthazar, who hailed from the Kingdom of Friezenberg, and together they moved to Enchancia where Sofia was born." As a result, some people have criticized a lack of cultural signifiers or ethnic identity in Sofia's character.
Sofia the First: Once Upon a Princess premiered on Disney Channel on November 18, 2012, and had 5.2 million viewers.
A range of Sofia the First merchandise has been launched by the Disney Store in the US, including costumes, books, toy figures, and homeware. Products have also been launched in the UK and France.
- The animations in Seasons Two and Three are lighter than in Season One.
- Purple is the most common and favored color throughout the series due to it being Sofia's signature color.
- At the beginning of the series, the Royal Preparatory Academy's students learn there are one hundred and thirty-eight kingdoms. That does not count two kingdoms revealed throughout the series: Merroway Cove and Hakalo. Only the Royal Family of Enchancia (Princess Sofia and her parents and siblings) knows about these two kingdoms.
- Sofia was the only Princess at Royal Prep to ride a horse, but now Amber does. In "Substitute Cedric," Maya can be seen wearing a Derby uniform.