A major commercial centre, the town came under control of the Holy Roman Empire in 923, through the homage paid by the Duke of Lorraine to German King Henry I. The early history of Strasbourg consists of a long conflict between its bishop and its citizens. The citizens emerged victorious after the Battle of Oberhausbergen in 1262, when King Philip of Swabia granted the city the status of an Imperial Free City.
Around 1200, Gottfried von Straßburg wrote the Middle High German courtly romance Tristan, which is regarded, alongside Wolfram von Eschenbach's Parzival and the Nibelungenlied, as one of great narrative masterpieces of the German Middle Ages.
A revolution in 1332 resulted in a broad-based city government with participation of the guilds, and Strasbourg declared itself a free republic. The deadly bubonic plague of 1348 was followed on 14 February 1349 by one of the first and worst pogroms in pre-modern history: several hundred Jews were publicly burnt to death, with the remainder of the Jewish population being expelled from the city. Until the end of the 18th century, Jews were forbidden to remain in town after 10 pm. The time to leave the city was signalled by a municipal herald blowing the Grüselhorn (see below, Museums,Musée historique);. A special tax, the Pflastergeld (pavement money), was furthermore to be paid for any horse that a Jew would ride or bring into the city while allowed to.
Strasbourg Cathedral, on which construction began in the twelfth century, was completed in 1439 (though only the north tower was built) and became the World's Tallest Building, surpassing the Great Pyramid of Giza. A few years later, Johannes Gutenberg created the first European moveable type printing press in Strasbourg.
In July 1518, an incident known as the Dancing Plague of 1518 struck residents of Strasbourg. Around 400 people were afflicted with dancing mania and danced constantly for weeks, most of them
