The Spanish monarchs, including King Juan-Carlos and Queen Sofia were at a celebratory event in Madrid today to mark the 40th anniversary of the Reina Sofia Alzheimer Foundation.
The royal quartet headed inside the foundation centre for presentations, and King Felipe took to the stage to praise his mother's efforts in establishing the charitable foundation 40 years ago.
Queen Sofia was also acknowledged for her continued patronage.
Today also marked Felipe and Letizia's 13th wedding anniversary. For this special occasion, Her Majesty donned the colour of love and premiered a deep red Carolina Herrera peplum jacket (US$2,990).
The leather jacket is defined by a peplum hem and features a round collarless neckline, horizontal seams, and leather covered buttons down the front and cuffs.
Letizia contrasted the jacket with her natural white Hugo Boss pencil skirt.
She also kept her accessories neutral and coordinated the Magrit 'Gabriela' bag (US$337) with matching D'Orsay pumps (a bespoke version of the brand's 'Alicia' style).
Finishing off the look were the SCHIELD 'Cyborg Flowers' earrings which Letizia debuted in July last year for the Spain-India Council Foundation awards.
Best wishes to the King and Queen of Spain on their special day!