I think its her blush /pink national day outfit she wore in 2018 and for the south corea state visit 2021, Its Felipe Varela
https://www.regalfille.com/wp-conte...Letizia-and-King-Felipe-at-national-day-4.jpg
https://1.bp.blogspot.com/-6PWeN9dO...fG7f7jHGyqllcPCgCLcBGAsYHQ/s610/letizia-5.jpg