[Middle Ages] Lexicon des Mittelalters

(Hrsg. R. Auty, u.a.). Stuttg., (etc.), Metzler, (1999). 10 vols., incl. index. Large 8vo. Vol. 1 and register in hc, vols. 2-9 in 72 loose issues. Some sl. dog-eared.

Standard reference work on medieval history of more than 18,000 pages with numerous entries.