Lothair was unable to visit Rome immediately as Germany was rocked by the rebellion of the Hohenstaufen brothers, with Conrad Hohenstaufen elected anti-king in December 1127, followed by his descent into Italy and his crowning as King of Italy at Monza on 29 July 1128. The German bishops, again led by Adalbert of Mainz, excommunicated Conrad, an act that was confirmed by Honorius in a synod held in Rome at Easter (22 April 1128). Honorius also sent Cardinal John of Crema to Pisa to hold another synod that excommunicated Archbishop Anselm of Milan, who had crowned Conrad king. Conrad found little help in Italy and with Honorius's support, Lothair was able to keep his throne.