1521 first native resistance against the Spanish colonisation in the Philippines

1521 battle in the Swedish War of Liberation

1521 battle during the Revolt of the Comuneros

1521 battle of the Swedish War of Liberation

Battle in 1521, part of Swedish war of liberation

Battle of the Italian War of 1521–1526

1521 battle during the Spanish conquest of Iberian Navarre

Battle during the Siege of Tenochtitlan in 1521

16th c. military engagement