On 24 August 1156, the archbishop consecrated the splendid abbey church of Laach; on 29 October of the same year he confirmed the foundations of the (formerly Premonstratensian) abbey of Arnstein-on-the-Lahn. In 1163, Hillin founded another Premonstratensian monastery (destroyed in the 17th century) on the site of a chapel built by Godfrey of Beselich.
On August 24, 1156, the archbishop consecrated the magnificent abbey church of Laach; on October 29th of the same year, he confirmed the foundations of the (formerly Premonstratensian) abbey of Arnstein-on-the-Lahn. In 1163, Hillin founded another Premonstratensian monastery (destroyed in the 17th century) on the site of a chapel built by Godfrey of Beselich.