Crown Prince Felipe, 46, will take over the Spanish throne following the abdication of his father, Juan Carlos I.
Spain's Prime Minister, Mariano Rajoy, said a new constitutional amendment would be proposed to allow Juan Carlos to abdicate.
More top news
David Cameron sets out his case for British jets and drones to strike so-called Islamic State targets in Syria in an address to the Commons.
A drink-driver who "destroyed the lives" of two mothers was allowed to have his curfew lifted so he could go on a foreign stag party.
Demonstrators have blockaded the entrance tunnel to Heathrow Airport in apparent protest at plans to build a third runway.