Queen Letizia met with the First Lady of the USA, Dr. Jill Biden at Zarzuela Palace on Monday, ahead of the NATO Summit held in Madrid this week.
The pair later visited the headquarters of the Spanish Association Against Cancer (AECC) to learn about their work and projects, as well as the international collaboration in cancer research.
Queen Letizia stepped out in a black & white polka dot sheath dress by Spanish fashion designer, José Hidalgo.
The Seville based couturier has a strong focus on flamenco style and Letizi's dress appears to be a modified version seen in a 2019 collection.
On her feet were her black suede Carolina Herrera slingback pumps.
Queen Letizia finished the look with her diamond bezel set stud earrings.