May to August, with one month per page; some of the listed saints’ feasts (e.g. Ulrich on 4 July, Kilian on 8 July) point to a South German origin. Notable features include Boniface of Tarsus on 14 May and Margaret on 15 July (also attested on 13 July in some calendars of the Diocese of Constance).

Two further fragments from the same host volume are Gb 571 (A), a South German redemption poem from the early 14th century, and Gb 571 (C), a 12th-century psalter.

• Michael Braunger, Tübingen 2026
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