#= sunday letter: b, rule number: 13, Diœcesis Urbis seu Romana
01-31=Urbis/01-30-FelixIV;;1570
02-15=Urbis/02-13-GregoriusII~02-15;;1570
02-21=02-09;;1888
Hy02-25=3;;1888 1906
03-22=03-24;;1888 1906
03-23=03-18;;1888 1906
04-13=Urbis/04-06-XystusI;;1570
04-14=Urbis/04-07-CoelestinusI~04-14t;;1570
04-15=04-04;;1888
04-15=03-27;;1906
05-30=Urbis/05-26~Urbis/05-30;;DA
05-31=Urbis/05-25o~05-31o;;1570
06-01=Urbis/05-26o;;1570
06-10=Urbis/05-27o;;1570
06-16=aliquibus locis/05-24-Auxilium;;1888 1906
06-17=05-27;;1906
07-12=07-10~07-12o;;1570
09-07=08-28;;1888
09-12=08-28~09-12bmv;;1906
dirge1=01-24 02-04 02-21;;1570
dirge1=01-31 02-03 02-21;;M1617
dirge1=XX-XX;;1888 1906
dirge2=02-28 03-14 06-13 07-07;;1570
dirge2=02-28 03-14 05-31 06-01 07-07;;M1617
dirge2=02-28 03-14 06-17;;1888
dirge2=02-28 03-14 06-18;;1906
dirge3=10-12;;1888
dirge3=10-11;;1906