The eight-year-old's mum Katie Price had revealed via social media that Princess was being treated in hospital, but didn't explain what had happened to the youngster.
Now her dad Peter has spoken out.
After being asked for an update on Princess by fans, he tweeted: "She broke her arm. She is fine now. Has her arm in a cast. She's excited about people signing it… . She was all laughs and giggles when I spoke to her yest. She's def a cluts like her dad (sic)."
Peter's ex-wife Katie had tweeted this week: "After a hour for ambulance to arrive at home earlier! still in hospital so shocked what's happened my poor little baby being do strong (sic)."
Divorced couple Katie and Peter also have son Junior, 11.
Katie and Peter, who met in the I'm A Celebrity... Get Me Out Of Here! jungle, split in 2009 and have both since remarried and had children with their new partners.
Former glamour model Katie is mum to son Harvey, 13, from her relationship with Dwight York, and kids Jett, two, and Bunny, one, with third husband Kieran Hayler.
Peter, meanwhile, and doctor wife Emily are parents to daughter Amelia, two, and recently announced their second child is on the way.
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