Crown Prince Frederik of Denmark was joined by Crown Princess Mary of Denmark, Princess Isabella and Prince Christian in attending the christening of Princess Athena of Denmark at the Mogeltonder Church in Tonder, Denmark on Sunday.

Princess Mary wore a Project D dress designed by Dannii Minogue.

The Australian singer and former X Factor judge will be delighted to see a royal wearing her ‘Phoebe’ blue bird peplum dress.

Her gorgeous printed dress, which is a refreshing alternative to spring florals, was styled with a black Prada clutch and black heels.

Silver jewels and a half-up, half-down hairstyle completed her Sunday best look.

It looks like the Kate Middleton effect has spread to other royals who are seeking affordable fashion that we can relate to.

You can buy Princess Mary’s Project D dress from my-wardrobe.com international and my-wardrobe.com US.

Credit: Getty