April 26, 2015 2:29 PM EDT

This year’s London Marathon was the biggest in the event’s history – and it included at least one famous face: Romeo Beckham, who completed the children’s race Sunday morning while his family cheered him on.

“We r so proud!! Romeo ran London mini Marathon for UNAIDS and 7 Fund x vb,” mom Victoria posted on Instagram early Sunday. “Well done Romeo!!” she wrote in a second post.

She and David Beckham, plus Romeo’s brothers Brooklyn and Cruz, were waiting after he crossed the finish line.

Romeo’s run was in support of the Joint United Nations Programme on HIV/AIDS and the “7” fund, a collaboration with UNICEF providing assistance to children in danger zones around the world, according to Victoria’s posts.

Romeo seems to be following in his dad’s footsteps: David said earlier this yearthat the fund was his “number one priority.”

This article originally appeared on People.com

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