Help interpreting Regnal calendar date

Question

I have only a basic understanding of Regnal calendar dates, but a source I'm looking at has a twist:

21 & 22 Edw. 3 m. 35

What is the meaning of "21 & 22" vs. a single number and "m. 35"?

Thanks for any help.

Comments

Ok thank you John Atkinson If anyone like me for example is new to the Regnal calendar,click on this link john provided in his 1st comment down below, It is very helpfulXD.

http://www.medievalgenealogy.org.uk/guide/chron.shtml

What had me confused is that it was written 21 & 22  Edw. "3 m. 35" with no year, and Edward was king 35 years and his start day was the 20th of November. so I thought "Edward 35"  was the answer I'm going to have too take some hard studying on this.

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That's not quite correct Troy.  21 & 22 Edw. 3 would refer to the 21st and 22nd regnal years of Edward III.  I wasn't quite sure what the m. 35 referred to but I I'm fairly sure if refers to membrane 35.  Most of these documents are in rolls, and membrane 35 would be the equivalent of page 35.

The Calendar for Close Rolls for Edward III with membrane 35 is here though this is just an indication, it may not refer to the same source as in the question.

A link for the regnal years of various English monarchs is available from here http://www.medievalgenealogy.org.uk/cal/medcal.shtml

 

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Thanks for the info John.  I haven't seen the term membrane in this context.  Some entries in this reference also include yet another piece, d:

20 & 21 Edw 8 m. 23 d., 27 d.

I started to think that what appeared to be dates were actually a reference to some source, so what you said makes a lot of sense.

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John, confirmation of what your wrote, p. 20:

"Calendar of Deeds, Inquisitions, and Writs of Dower, Enrolled on the Plea Rolls of the County of Chester. - Edward 3. -

The date in the margin is that of the entry as far as can be inferred from the heading of the membrane on which it appears; the date in italics at the end of each entry is the reference to the Roll.

I should be been more persistent.  Thanks for your help.

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Some of the membranes, look like they have a d after the number, not sure why, but I presume that is the answer.

If you look at the source I linked to, and turn back to page 426, there is a membrane 1d.

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I've just found this list of Commonly used abbreviations  in the Houses of Parliament website, and m is membrane.  And d is dorse (other side?) of membrane or rotulet.

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Mystery solved!  Thanks for sharing your expertise.