1. Cotton MS Titus D XI Reference (shelfmark): Cotton MS Titus D XI Title: Thomas Becket, Epistole (3r–41v); Walter Hilton, De imagine peccati (42r–55r: Bloomfield 1658); music for the hymn ‘O lux beata trinitas’ (55v–56v) Scope & Content: Dated: middle of the 15th century; 16th century (55v–56v) Collection Area: Western Manuscripts Languages: Latin Date Range: Mid 15th century-16th century Extent: 1 item