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.
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Four Arab nations that cut ties with Qatar over its alleged support for Islamist groups have handed their neighbour a 13-point list.
The father-of-four from Cardiff with appear in court this afternoon charged with terrorism-related murder and attempted murder.