Convert Regnal Years to Calendar Years

In early English legal documents, the year is often given as the number of years in a particular monarch’s reign.  For example, Charles I acceded to the throne on 27th March 1625 so his first ‘Regnal Year’ ran from 27th March 1625 to 26 March 1626.  So 3rd June 1633 might appear as ‘3rd June 9 Charles I’ meaning the 3rd June in the 9th year of his reign.  Apart from Henry II, Richard I and Henry III, a monarch’s reign was considered to begin when the previous monarch died, abdicated or was deposed —  the Coronation date is always a little later.  The dates given for a monarch’s reign are all in the present Gregorian calendar.

To discover the Calendar Year from a given Regnal Year, choose
the Monarch and date, enter the Regnal Year and click on ‘Find’.

              Monarch                  Day         Month                   Year of Reign (Regnal Year)    

William I William II Henry I Stephen Henry II Richard I John Henry III Edward I Edward II Edward III Richard II Henry IV Henry V Henry VI Edward IV Edward V Richard III Henry VII Henry VIII Edward VI Jane Mary Philip (with Mary) Elizabeth I James I (James VI) Charles I - Interregnum - Charles II James II - Interregnum* - William & Mary William III Anne George I George II George III George IV William IV Victoria Edward VII George V Edward VIII George VI Elizabeth II       1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st   January February March April May June July August September October November December                        

This monarch reigned  

The calendar year is  

      Notes

  Where two calendar years are given in the converter, say 1605/6, for a date from New Year to Lady Day, the first is the Julian year date and the second the Gregorian year which applied in Italy from 1582. Sometimes they are called 'Old Style'/'New Style' calendars.  The two years agreed after March 24th each year and from 1752 onwards only the modern Gregorian calendar was and is used in England and her colonies.  More information on the two calendars.