The Order of the Jar was a chivalric order founded by Ferdinand of Antequera in 1403. After Ferdinand became King of Aragon in 1412, it became a royal order and lasted until 1516.
Golden jar of lilies with a griffin, the device of the order from the armorial of Hendrik van Heessel.
Portrait of Oswald von Wolkenstein in a manuscript from 1432, with the emblem of the Order of the Jar on his bend and hanging from his collar, while the chain and the cross-and-dragon on the bend symbolise the Order of the Dragon
Ferdinand I named Ferdinand of Antequera and also the Just was king of Aragon, Valencia, Majorca, Sardinia and (nominal) Corsica and king of Sicily, duke (nominal) of Athens and Neopatria, and count of Barcelona, Roussillon and Cerdanya (1412–1416). He was also regent of Castile (1406–1416). He was the first Castillian ruler of the Crown of Aragó and his dynasty came to unify the Iberian peninsula under Castillian rule.
Ferdinand I being crowned by the infant Jesus in San Benito el Real Valladolid, by Juan Rodríguez de Toledo (c.1410–15)