Given the name of Person X, it may be somewhat surprising that they are included in this series
Person X had much royal influence
Person X dropped something royal after being surprised by the Welsh
Person X then fought a duel in Berkshire
Person X lost the duel, was carried away unconscious by a religious order and then lived the remainder of their life with that religious order in Berkshire
ABCD = The Year that Person X dropped the royal something
E = number of letters in the royal something that was dropped (only one word)
F = first word in the name of the place that Person X fought the duel (count number of letters - apostrophe's are not letters)
GH = last two digits in the year that Person X was accused of something
J = last digit of the year that Person X went to France
Cache can be found at N 51° 2H.DJF W 000° 5B.EHJ
Should anybody else wish to add to the series, just drop me an email so I can keep track of numbers.