📅 Today in HistoryMay 27

Count Emicho enters Mainz, where his followers massacre Jewish citizens. At least 600 Jews are killed.

Richard III of Capua is anointed as Prince two weeks before his untimely death.

Malcolm IV becomes King of Scotland.

John is crowned King of England.

Richard of Cornwall, and his wife, Sanchia of Provence, are crowned King and Queen of the Germans at Aachen Cathedral.

Manchu regent Dorgon defeats rebel leader Li Zicheng of the Shun dynasty at the Battle of Shanhai Pass, allowing the Manchus to enter and conquer the capital city of Beijing.

Tsar Peter the Great founds the city of Saint Petersburg.

The Pitt-Tierney duel takes place on Putney Heath outside London. A bloodless duel between the prime minister of Great Britain William Pitt the Younger and his political opponent George Tierney.

The Battle of Oulart Hill takes place in Wexford, Ireland; Irish rebel leaders defeat and kill a detachment of militia.

War of the Second Coalition: Austrian forces defeat the French at Winterthur, Switzerland.