Year 1490 (MCDXC) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events January–December January 4 – Anne of Brittany announces that all those who ally themselves with the king of France will be considered guilty of the crime of Lèse-majesté. March 13 – Charles II becomes Duke of Savoy at age 1; his mother Blanche of Montferrato is regent. March or April – 1490 Ch'ing-yang event, a presumed meteor shower or air burst over Qingyang in Ming dynasty China, said to have caused casualties. July 13 – John of Kastav finishes a cycle of frescoes in the Holy Trinity Church, Hrastovlje (modern-day southwestern Slovenia). November 20 – The first edition of the chivalric romance Tirant lo Blanch, by Joanot Martorell, is printed in Valencia. December 19 – Anne of Brittany is married to Maximilian I, Holy Roman Emperor by proxy. Date unknown Ashikaga Yoshitane becomes shōgun of Japan. Perkin Warbeck claims to be the son of King Henry VII of England, at the court of Burgundy. Traditional date of the Battle of Glendale (Skye) between the Scottish clans MacDonald and MacLeod. Catholic missionaries arrive in the African Kingdom of Kongo. Pêro da Covilhã arrives in Ethiopia. Regular postal service connects the Habsburg residences of Mechelen and Innsbruck, the first in Germany. Leonardo da Vinci observes capillary action, in small-bore tubes. Leonardo da Vinci develops an oil lamp: the flame is enclosed in a glass tube, placed inside a water-filled glass globe. All Saints' Church, the Schlosskirche in Wittenberg, is begun. Tirant lo Blanch, by Joanot Martorell and Martí Joan de Galba, is published. Aldus Manutius moves to Venice. John Colet receives his M.A. from Magdalen College, Oxford. Johann Reuchlin meets Giovanni Pico della Mirandola. Merchants carry coffee from Yemen to Mecca (approximate date). Battle of Chocontá: The northern (zaque) tribes of the pre-Columbian Muisca Confederation (central Colombia) are beaten by the southern (zipa) tribes. Births February 14 – Valentin Friedland, German scholar and educator of the Reformation (d. 1556) February 17 – Charles III, Duke of Bourbon, French military leader (d. 1527) March 6 – Fridolin Sicher, Swiss composer (d. 1546) March 22 – Francesco Maria I della Rovere, Duke of Urbino, Italian noble (d. 1538) March 24 – Giovanni Salviati, Italian Catholic cardinal (d. 1553) April – Vittoria Colonna, Italian poet (d. 1547) April 4 – Vojtěch I of Pernstein,