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April 11: The Battle of Ceresole is fought in Italy
1544 (MDXLIV) was a leap year starting on Tuesday of the Julian calendar, the 1544th year of the Common Era (CE) and Anno Domini (AD) designations, the 544th year of the 2nd millennium, the 44th year of the 16th century, and the 5th year of the 1540s decade. As of the start of 1544, the Gregorian calendar was 10 days ahead of the Julian calendar, which was the dominant calendar of the time.