1 April 1721
300 years after the beginning of the construction of the Palacio de la Granja de San Ildelfonso..
3 April 1921
100th anniversary of the birth of Jan Sterling.
9 April 1821
200th anniversary of the birth of Charles Baudelaire.
13 April 2021
International Kissing Day.
16 April 1921
100th anniversary of the birth of Peter Ustinov.
25 April 1921
100th anniversary of the birth of Karel Appel.
