Officially called the Archicathedral Basilica of St. Peter and St. Paul, but commonly referred to as just The Cathedral, the cathedral is the oldest not only in Poznan, but in all of Poland. Some of the important historical Polish rulers buried here include Mieszko I and II, Boleslaus the Brave, Casimir the Restorer, and Przemysl I and II. The pre-Romanesque cathedral was built in the second half of the 10th century, and was rebuilt and added onto many times throughout its more than thousand year history. Indeed, if you come to Poznan, you can't leave until you've visited The Cathedral, which is found on the island of Ostrow Tumski.
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