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.
In 1156, Archbishop consecrated the abbey church of Laach and confirmed the foundations of the former Premonstratensian abbey of Arnstein-on-the-Lahn. In 1163, Hillin established another Premonstratensian monastery on the site of a chapel built by Godfrey of Beselich.