On another occasion, the former journalist was pictured wearing a chic grey chequered suit to an event in Spain.
The wife of King Felipe VI of Spain, 51, chose to wear a smart checkered trouser suit with a crisp white shirt underneath and left the top button undone.
She teamed her outfit with a pair of pointy black pumps and a matching leather bag.
Earlier this week, Kate Middleton, 38, stepped out in a dressed down head-to-toe emerald outfit as she attended a SportsAidEvent at the London Stadium.
The royal wore a pair of loose dark green culottes, and she tucked a thin green jumper into the waistband.