guibert of ravenna การใช้

On 15 October 1080 near Volta Mantovana the Imperial troops ( with Guibert of Ravenna as the newly elected Antipope Clement III ) defeated the troops loyal to Gregory VII and controlled by Matilda.
Henry, upon receipt of this news, again entered Rome on 21 March to see that his supporter, Archbishop Guibert of Ravenna, was enthroned as Pope Clement III on 24 March 1084.
An army commanded by Godfrey, former Duke of Lower Lorraine, and Arduino, along with the young Matilda, arrived on the scene and skirmished with the forces of Honorius led by Guibert of Ravenna.
Resolved to continue the work of reform commenced by Gregory VII, and being obliged to struggle against an antipope Guibert of Ravenna and the Emperor Henry IV, he was in dire need of competent and devoted allies and called his former master to Rome in 1090.
After celebrating Easter of 1087 in his monastery, Victor proceeded to Rome, and when the Normans had driven the soldiers of the Antipope Clement III ( Guibert of Ravenna ) out of St . Peter's, he was consecrated and enthroned on 9 May 1087.