On This Day: June 14

Munich is founded by Henry the Lion on the banks of the river Isar.

First Barons' War: Prince Louis of France captures the city of Winchester and soon conquers over half of the Kingdom of England.

While taking exile in Fuzhou in southern China, away from the advancing Mongol invaders, the remnants of the Song dynasty court hold the coronation ceremony for the young prince Zhao Shi, making him Emperor Duanzong.

Second Mongol invasion of Vietnam: Forces led by Prince Trần Quang Khải of the Trần dynasty destroy most of the invading Mongol naval fleet in a battle at Chuong Duong.

Kublai Khan defeats the force of Nayan and other traditionalist Borjigin princes in East Mongolia and Manchuria.

Richard II of England meets leaders of Peasants' Revolt on Blackheath. The Tower of London is stormed by rebels who enter without resistance.

Welsh rebel leader Owain Glyndŵr, having declared himself Prince of Wales, allies himself with the French against King Henry IV of England.

Joris Veseler prints the first Dutch newspaper Courante uyt Italien, Duytslandt, &c. in Amsterdam (approximate date).

English Civil War: Battle of Naseby: Twelve thousand Royalist forces are beaten by 15,000 Parliamentarian soldiers.

The Raid on the Medway by the Dutch fleet in the Second Anglo-Dutch War ends. It had lasted for five days and resulted in the worst ever defeat of the Royal Navy.