ADALBERTO, monk and provost of SPIRA. — He lived around the middle of the 11th century. Two letters sent by him to Bernold of Constance have survived, in which he defends Pope Gregory VII. We know only the date of his death, which occurred on 5 December 1079.
BIBL.: Bernoldi Chronicon, in MGH, Script., V, Hannover 1844, pp. 386, 392; PL 148, 1141–80, 1219–30.