Tory MPs are threatening to walk out on the King of Spain if he mentions the issue of Gibraltar while on a state visit to the UK. The long-line collarless lemon blazer featured a minimal style and textured fabric, and complimented the royal's slimline physique.
The EU annoyed Britain and Gibraltar in April by suggesting Spain has a right of veto over the territory's post-Brexit relationship with the bloc.
Following protocol the Queen introduced the Spanish couple to leading figures from United Kingdom national life, including Prime Minister Theresa May, Home Secretary Amber Rudd - whose hat blew off when she arrived - Metropolitan Police Commissioner Cressida Dick and senior military figures. Felipe rode with the queen in the 1902 State Landau, a gilded carriage built for the coronation of King Edward VII, while Philip travelled with Letizia in a separate carriage.
Spain earlier this year agreed to the EU's ruling on Brexit negotiations that "no agreement between the European Union and the United Kingdom can be applied to the territory of Gibraltar without an agreement between the Kingdom of Spain and the United Kingdom".
He said: "What the king has said harks back to a time when the governments in Madrid and London might have made decisions over the heads of the people of Gibraltar".
A guard of honour, the 1st Battalion Irish Guards, lined up in front of the royal party and Philip escorted Felipe across the parade ground to inspect the troops.
It is the first state visit to Britain by Spanish royals in 31 years.
The Queen and King Felipe are expected to discuss historic, cultural and commercial ties between the two countries, as well as Brexit.
The 49-year-old, who is a towering 6ft 5in tall, came to the throne three years ago when his father Juan Carlos, now 79, abdicated after 40 years as king following ill health and damaging scandals.