- Law: B.1.10*
- Legal maxim
- in dubiis certior pars est tenenda: A.14.36*
- periculum sit clientis (cf. A.14.33): A.12.39*
- Legal phrase
- Legal term
- Legal terminology
- dolus dat causam contractui, vel incidit in ipsum contractum: A.14.14*
- Legenda aurea
- C.4 (De sancta Lucia virgine)
- C.11 (De sancto Thoma Cantuariensi)
- C.12 (De sancto Silvestro)
- C.57 (De sancto Ambrosio)
- Legenda Aurea
- Legenda aurea
- Suppl.C.204 (De sancto Gangolfo)
- Legenda sanctorum
- Leo I
- Leo papa: I.4.8*
- Lex Machometi: P.2.1*
- Liber Barlaam: H.1.22*, H.4.11*, M.11.78*, T.1.21*, T.3.5*
- Liber de purgatorio Patricii: M.11.136*
- Liber metheororum: C.9.1*
- Liber naturarum: R.4.8*
- Liber sacramentorum Gellonensis
- Liberius papa
- Libri de gestis sarracenorum: A.27.63*
- Liturgy
- Breviarium Romanum, in officio defunctorum
- III noct. Resp. ad lect. 7: A.6.8
- Breviary
- Dominica prima aduentus
- Lectio: Mt. 21:1-9 (Sarum): A.13.2
- Dominica secunda aduentus
- Lectio: Lc. 21:25-33 (Sarum): A.13.2
- Dominica secunda adventus: A.13.4*
- Ecce rex tuus uenit: A.2.4*
- Sarum Breviary
- Matins invitatory: In die sanctorum innocentium (vol.1 col.231): A.16.3
- Matins invitatory: In festivitate omnium sanctorum (vol.3 col.962).: A.16.3
- Matins invitatory: In festo reliquiarum (vol.3 col.453): A.16.3
- Officium mortuorum (v.2 col.271): A.15.5
- Sermon of Leo inc. Observationem, read in many churches on 1st Sun. of Lent: M.9.4*
- Lotharius di Segni
- De miseria humane conditionis
- 2.6.1 (ed. Maccarrone, pp.43-44): A.27.5