Today in History for April 30th

Spring and Autumn period: Battle of Qianshi: Upon the death of the previous Duke of Qi, Gongsun Wuzhi, Duke Zhuang of Lu sends an army into the Duchy of Qi to install the exiled Qi prince Gongzi Jiu as the new Duke of Qi — but is defeated at Qianshi by Jiu’s brother and rival claimant, the newly...

Treaty of Meerssen: King Louis the German and his half-brother Charles the Bald partition the Middle Frankish Kingdom into two larger east and west divisions.[2]

Sweden is defeated by Estonian tribes in the Battle of Lihula.[3]

Mudéjar revolt: Muslim rebel forces took the Alcázar of Jerez de la Frontera after defeating the Castilian garrison.

King James IV of Scotland marries Margaret Tudor, daughter of King Henry VII of England at Holyrood Abbey in Edinburgh, Scotland.

Krishnadeva Raya is crowned Emperor of Vijayanagara at Chittoor.