Guillelmi I. regis diplomata
By: edidit Horst Enzensberger.
Contributors: Enzensberger, Horst.; William I, King of Sicily, 1120?-1166.
Series: Codex diplomaticus Regni Siciliae -- t. 3
Publisher: Böhlau
Published: 1996
Place of publication: Köln
Language: lat; ger; gre; ara
Number of pages: 238
Subjects: William -- I, -- King of Sicily, -- 1120?-1166.; Sicily (Italy) -- History -- 1016-1194 -- Sources.
Notes: Includes bibliographical references (p. [225]-236) and indexes.

Latin, Greek and Arabic, with notes in German.