1626 followed by 1627
1626 (MDCXXVI) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1626th year of the Common Era (CE) and Anno Domini (AD) designations, the 626th  year of the 2nd millennium, the 26th  year of the 17th century, and the  7th   year of the 1620s decade. As of the start of 1626, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.