On April 23, 2021, King Felipe VI and Queen Letizia of Spain attended the official event at Cervantes Institute in Alcalá de Henares held on the occasion of World Book Day 2021. World Book Day is an annual event organized by the Unesco. 23 April is a symbolic date for world literature. It is on this date in 1616 that Cervantes, Shakespeare and Inca Garcilaso de la Vega all died. Queen Letizia wore a v-neck midi dress from Massimo Dutti.