Altogether, he served four emperors and kings in the imperial chancellery, where he made his career in both the worldly and the spiritual.
When the Welf king Otto IV was generally recognized, Conrad served him and accompanied him to Rome for his crowning by Pope Innocent III.
In 1220 he accompanied the Staufer king Frederick II to Rome for his crowning by pope Honorius III.
In the last years of his life, Conrad dedicated himself exclusively to his two Diocese, and foremost to the bishopric of Speyer and his cathedral.
Conrad died on 24 March 1224 and his final resting place is next to King Philip in the Speyer Cathedral.