Tight security for Meghan & Harry's wedding, health concerns for Prince Philip - and Kate officially starts maternity leave

Summary: Join royal experts Omid Scobie and Emily Andrews for a brand new episode of On Heir as they report the latest details from Prince Harry and Meghan Markle’s royal wedding and reveal the extreme security measures keeping the the couple safe on their big day. There’s also a look at which lucky friends and family received some of the 600 invites sent out last week. Find out just how many members of the Suits cast made the list and which Royal Family member probably didn’t. Plus, after Prince Philip pulled out of a second public appearance at the last-minute, On Heir has the latest from Buckingham Palace as the Duke of Edinburgh faces missing a third engagement due to hip problems. There’s also exclusive behind the scenes details from Harry and Meghan’s Northern Ireland visit, Duchess Kate starts maternity leave, and a peek inside the Queen’s busy Spring diary. Subscribe now for the latest on all your favourite royals every week and send questions to the show on Twitter using the hashtag #OnHeir.