Reign of Henry IV

Regnal yearEaster Sunday 
1 Henry IV
30 September 1399
-29 September 1400		 18 April 1400  September October November December January February March April May June July August September
2 Henry IV
30 September 1400
-29 September 1401		 3 April 1401  September October November December January February March April May June July August September
3 Henry IV
30 September 1401
-29 September 1402		 26 March 1402  September October November December January February March April May June July August September
4 Henry IV
30 September 1402
-29 September 1403		 15 April 1403  September October November December January February March April May June July August September
5 Henry IV
30 September 1403
-29 September 1404		 30 March 1404  September October November December January February March April May June July August September
6 Henry IV
30 September 1404
-29 September 1405		 19 April 1405  September October November December January February March April May June July August September
7 Henry IV
30 September 1405
-29 September 1406		 11 April 1406  September October November December January February March April May June July August September
8 Henry IV
30 September 1406
-29 September 1407		 27 March 1407  September October November December January February March April May June July August September
9 Henry IV
30 September 1407
-29 September 1408		 15 April 1408  September October November December January February March April May June July August September
10 Henry IV
30 September 1408
-29 September 1409		 7 April 1409  September October November December January February March April May June July August September
11 Henry IV
30 September 1409
-29 September 1410		 23 March 1410  September October November December January February March April May June July August September
12 Henry IV
30 September 1410
-29 September 1411		 12 April 1411  September October November December January February March April May June July August September
13 Henry IV
30 September 1411
-29 September 1412		 3 April 1412  September October November December January February March April May June July August September
14 Henry IV
30 September 1412
-20 March 1413		   September October November December January February March