Princess Estelle of Sweden celebrated her 11th birthday with a new portrait released by the Swedish Royal Court.

Estelle is the eldest child of Crown Princess Victoria and is next in line to be the Swedish Queen.

In the portrait, Estelle wore a cream jumper with a Patachou "houndstooth tweed mini skirt" that retails for £106.

The skirt is made of cotton and tweed, black and white, with a houndstooth pattern.

Despite the cost, royal fans praised Estelle's outfit in the comments of the post.

Kate Middleton, the Princess of Wales, has worn houndstooth dresses by Emilia Wickstead and Reiss Rubik.

Kate also wore a houndstooth dress from Zara in 2021, causing a 305% spike in searches for "houndstooth."

The monochrome houndstooth check Zara dress with a belted waist and pussy-bow collar originally cost £89.99.

Houndstooth is a classic pattern that both Estelle and Kate Middleton show can make you look polished and elegant.