Late church cantatas by Johann Sebastian Bach refers to sacred cantatas he composed after his fourth cycle of 1728–29. Whether Bach still composed a full cantata cycle in the last 20 years of his life is not known, but the extant cantatas of this period written for occasions of the liturgical year are sometimes referred to as his fifth cycle, as, according to his obituary, he would have written five such cycles – inasmuch as such cantatas were not late additions to earlier cycles (e.g. chorale cantatas added to the chorale cantata cycle), or were adopted in his oratorios.