Reign of John

N.B. King John's regnal years were reckoned from Ascension Day, the moveable feast on which he was crowned.
Therefore the range of dates covered varies from year to year.
Regnal yearEaster Sunday 
1 John
27 May 1199
-17 May 1200		 9 April 1200  May June July August September October November December January February March April May  
2 John
18 May 1200
-2 May 1201		 25 March 1201  May June July August September October November December January February March April May  
3 John
3 May 1201
-22 May 1202		 14 April 1202  May June July August September October November December January February March April May  
4 John
23 May 1202
-14 May 1203		 6 April 1203  May June July August September October November December January February March April May  
5 John
15 May 1203
-2 June 1204		 25 April 1204  May June July August September October November December January February March April May June
6 John
3 June 1204
-18 May 1205		 10 April 1205    June July August September October November December January February March April May  
7 John
19 May 1205
-10 May 1206		 2 April 1206  May June July August September October November December January February March April May  
8 John
11 May 1206
-30 May 1207		 22 April 1207  May June July August September October November December January February March April May  
9 John
31 May 1207
-14 May 1208		 6 April 1208  May June July August September October November December January February March April May  
10 John
15 May 1208
-6 May 1209		 29 March 1209  May June July August September October November December January February March April May  
11 John
7 May 1209
-26 May 1210		 18 April 1210  May June July August September October November December January February March April May  
12 John
27 May 1210
-11 May 1211		 3 April 1211  May June July August September October November December January February March April May  
13 John
12 May 1211
-2 May 1212		 25 March 1212  May June July August September October November December January February March April May  
14 John
3 May 1212
-22 May 1213		 14 April 1213  May June July August September October November December January February March April May  
15 John
23 May 1213
-7 May 1214		 30 March 1214  May June July August September October November December January February March April May  
16 John
8 May 1214
-27 May 1215		 19 April 1215  May June July August September October November December January February March April May  
17 John
28 May 1215
-18 May 1216		 10 April 1216  May June July August September October November December January February March April May  
18 John
19 May 1216
-19 October 1216		   May June July August September October