1309
Clement V settles at Avignon
The papal court pitched its tents in a Provencal town belonging to the counts of Provence, initially a temporary arrangement for a sickly pope who dreaded the Roman summer. Clement meant it to be temporary. Seventy years of popes and eight conclaves later, Avignon had become the most lavish court in Europe, with fresco-painted palaces and a reputation for venality.
Angkor's long decline
The Khmer Empire's colossal temple-city on the Tonle Sap was increasingly outmatched by rising Thai kingdoms to its north. Hydraulic works that had sustained a million-strong capital fell into disrepair as labor was diverted to endless wars. Cambodia's classical age was closing; Ayutthaya's founding in 1351 would accelerate the disintegration of Khmer power across mainland Southeast Asia.
Teutonic Knights move capital to Marienburg
Grand Master Siegfried von Feuchtwangen shifted the Order's headquarters from Venice to the brick fortress on the Nogat, consolidating a Baltic state built on crusade against pagan Prussians. Marienburg would grow into Europe's largest brick castle, its vast halls heated by hypocaust systems, and govern a theocratic realm that rivaled any kingdom around the Baltic.
Siege of Gibraltar by Castile
Ferdinand IV of Castile wrested Gibraltar from the Marinid Moors, planting the Castilian banner on the limestone rock for the first time. The siege required naval blockade of the strait to prevent reinforcements from Morocco. The fortress would change hands repeatedly between Christian and Muslim powers for the next century, a contested hinge between Mediterranean and Atlantic, Africa and Europe.