What does "living 15 Rich. II" mean for the year an ancestor was alive in England?

This is a notation used in the British Roots of Maryland Families II by Robert W. Barnes regarding the Bysshe Family.

It also says another ancestor was "living 14 Hen. V and 36 Hen. VI." I thought it may mean the ancestor was living in 1414 since Henry V was ruling at during that year and 1436 since Henry VI was ruling during that year. However Richard II ruled between 1377-1399 so I can't figure out what the 15 in "living 15 Rich. II" means.


3 Answers 3


This format of this date is called a Regnal year. It was commonly used in England, and is simply the number of years into the reign of the named monarch. A list of regnal years of English monarchs is available on Wikipedia.


  • 15 Rich. II = 1392
  • 14 Hen. V is an error, since Henry V only reigned 10 years
  • 36 Hen. VI = 1458

My favourite resource for calculating regnal years is this regnal year calculator. There are many other similar calculators available.

Be careful when making calculations, because regnal years get complicated, not least because for much of the history of the British monarchy the year started on March 25th rather than January 1st. Also, some monarchs had several regnal years corresponding to the same year. For example, James VI of Scotland was already in the 36th year of his reign of Scotland when he became James I, King of England.

Just for fun, today (2 Jul 2017) would be written as 66 Eliz. II.

  • That makes sense. Thanks so much for the explanation! I appreciate everyone's help today.
    – Stephanie
    Commented Jul 3, 2017 at 3:20

Normally that notation means the year of the reign - starting with 1 Henry N or whatever. Except that the notation doesn't work for Henry V who only reigned 1413-1422....

So either I'm wrong or the transcript is wrong....

Feel free to edit this answer if it's useful.

  • I thought of that too but when it didn't work for Henry V I thought I must be wrong. I was wondering if there was a mistake in the book as well.
    – Stephanie
    Commented Jul 3, 2017 at 2:59

Henry V had only 10 regnal years, so the notation "14 Hen. V" must have an error. My guess is that it should be "14 Hen. VI". I'm assuming that the source is a printed book, a secondary summary of primary sources. In that case, you should try to find the primary sources. Hopefully, that will clear up the mystery.

According to the Wikipedia article that @Harry Vervet cited, each monarch's regnal year started on a different date, not March 25 (up to 1751) or January 1 (1752-present). Those days are the New Year's days, which is also important to know, but something unconnected to your inquiry.

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