The Hohenstaufen had never used the name Philip before. The prince was named after the Archbishop Philip of Cologne, who was an important helper and confidante of Barbarossa at this time. The name of the Archbishop of Cologne was thus accepted into a royal family. For historian Gerd Althoff, this demonstrative honor makes "Barbarossa's preparations for the confrontation with Henry the Lion tangible". A little later, the Archbishop of Cologne played a key role in the overthrow of the powerful Duke of Bavaria and Saxony.