They 're great friends who attend events , share pals in common and even climb mountains together , so attending a charity reception where Holly Branson was giving a speech was no stretch for Princess Beatrice . The royal wore a blue jacket over a black dress , with a black crocodile clutch at a cocktail reception and dinner ahead of We Day UK event on Friday . Holly Branson , Sir Richard Branson 's daughter , who co-chairs the day-long charity festivities , gave a speech to an audience that included her father , brother Sam Branson and actor Martin Sheen , on her first day back to work after having twins in December . Scroll down for video . Princess Beatrice joins great mate Holly Branson and her father Sir Richard at a diner ahead of Friday 's We Day event in Wembley . Beatrice catches up with her pals , Sir Richard Branson 's children Holly and Sam at the We Day event . We Day UK takes place at The SSE Arena , Wembley , tomorrow where Martin Sheen , Sir Richard Branson , Conor Maynard , Kweku Mandela , Years & Years , Bars & Melody and other names will speak or perform at the event to 12,000 people . The event hopes to kick off another year of volunteering and charitable giving . Princess Beatrice , 26 , supports the annual event alongside her cousin Prince Harry . She tweeted , ' ‘ Proud to be supporting @ weday this Friday @ HollyBranson is making the opening speech , good luck you ’ ll do great. ’ In September Beatrice and Holly took part in the Big Climb with Sam Branson , his then fiancee Isabella Calthorpe , and two other friends in 2012 . The six chums , who ran the 2010 London marathon together dressed as a giant caterpillar , used the climb to launch their new charitable venture , Big Change . At the We Day event , Beatrice and Holly posed for pictures alongside Sam and their entrepreneur father Sir Richard . From left to right , Holly , who spoke at the event poses with dad Richard and actor Martin Sheen , who is also involved , and another of the charity 's patrons Sam Branson , who 's about to become a father . The Branson siblings greet each other at the We Day dinner at the Bulgari Hotel , Knightsbridge . The celebration dinner was hosted by Hani Farsi , who owns the Bulgari Hotel in Knightsbridge , where the event was hosted . Brothers Marc and Craig Kielburger , who founded We Day were also there . Guests enjoyed a menu that included seared beef fillet with confit potato and gianduja mousse with hazelnut caramel . Holly Branson clearly called a babysitter for the night , as she and husband Fred Andrewes have three-month old twins , Etta and Artie . Before an appearance on Sky News , she tweeted yesterday : 'First day doing some work since having twins and thrown in the deep end ! ' While her brother announced in September that he and his wife were expecting .
Princess Beatrice joins friends Holly and Sam Branson at charity dinner . New mum Holly had twins Etta and Artie in December . TL;DR Beatrice , Holly and Sam have done several charity events together .