English Kalendar , early 14th century

On ff. 53v-54r there is a kalendar, seemingly English, and not Sarum. It contains the usual Sarum saints, and then additionally: March, Saint Chad, praesul; April, Saint Guthlac; June, Saint Etheldreda; October, Saint Frideswide. On ff. 54v-55r, and f. 89r-v there are insertions to the manuscript (otherwise written in one 14th century hand) of notes on the dates of Easter, Moveable Feasts, and other discussion and mention of the contents of the kalendar.