Princess Beatrice and boyfriend, Edoardo Mapelli Mozzi, stepped out together on Saturday for Lady Gabriella Windsors picturesque wedding at St. Georges Capel inside Windsor Castle.

The couple, who has been dating since around the beginning of last fall, were all smiles as they made their way into the ceremony alongside Beatrices mother, Sarah Fergie Ferguson.

SEE ALSO:Princess Beatrice goes public with her billionaire new boyfriend

Beatrice, 30, looked stunning in a navy lace dress from Self Portrait with cut-outs, while Mozzi, 34, donned an old school suit with tails and a patterned red tie.

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The couple has attended several events together in the past — like Londons National Portrait Gallery Gala in March and the Berggruen Prize Gala atthe New York Public Library back in December– but attending a royal wedding together, where guests included new father Prince Harry, as well as Prince Philip, proves that the couple has gotten extremely serious about their relationship.

Beatrice and her billionaire boyfriend have reportedly known each other for years, meaning that they didnt need to go through a formal introduction to each others parents,Peoplereports.

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SEE ALSO:Fergie stuns in green dress at daughter Eugenies wedding: Photos

During their first event together in December, sources said that they were moving very quickly and that it wouldnt surprise anyone if they got engaged within a short period oof time.

Their blossoming romance follows Beatrices nearly 10-year relationship with boyfriend Dave Clark, which ended back in 2016. Her sister, Princess Eugenie, famously married Jack Brooksbank in awidely-covered weddingin October.

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