All Saints' Abbey (Kloster Allerheiligen) was a Premonstratensian monastery founded around 1192 when a wooden chapel was built, which was gradually extended to be a monastery. In 1196 the foundation charter was issued by Duchess Uta of Schauenburg. In 1200 Philip of Swabia recognised the foundation, and in 1204 Pope Innocent III confirmed it. The first abbot was Gerung.
In 1248 canons from All Saints were sent to Lorsch Abbey to turn it into a Premonstratensian monastery, since when Lorsch was counted as a daughter house of All Saints. Another daughter house was set up at Haguenau. Through various gifts and livings, inter alia at Oberkirch and Oppenau, the monastery grew rapidly and became one of the major religious, cultural and political centres of the region.
In 1657 it was raised to the status of 'abbey' by the general chapter of the Premonstratensian Order. In the 18th century it was at the high point of its power. In November 1802 however Margrave Karl Friedrich of Baden dissolved the abbey in the course of secularisation, and took all its possessions.
Large fires, in 1470 and 1555, had already destroyed parts of the premises. In 1804, a last fire, started when a bolt of lightning struck the church tower, finished the job. In 1816 the ruins were sold for demolition and used as a quarry for stone and scrap for churches in the valleys of the Rench and the Acher. The altars and saints' figures are to be found in numerous local churches, for example in Bad Peterstal, Oppenau, Ottenhöfen and Achern. Three statues from All Saints' Abbey are above the gateway of the prince's chapel at Lichtenthal Abbey, representing Saint Helena, Uta of Schauenburg and Gerung.
Not until the end of the 19th century, when tourism finally reached the Lierbach valley and its waterfalls, were any steps taken to secure what was left of the ruins, which were then put into the condition they are in today.
On a rise above the ruins of the monastery complex is a war memorial for the fallen and deceased members of the Black Forest Society (Schwarzwaldverein), raised in 1925 by C.M. Meckel und A. Rickert.
In 1947 the Charitable Union of Mainz acquired the area round about the monastery ruins and built a convalescent home for children there. Since 1978 this has been used as a country holiday centre for schools. In 1960 the Bishop of Mainz built a chapel here that, like the abbey church, is dedicated to the honour of God and All Saints.
Also now on the site are a cafe and a small museum. Below the ruins are the All Saints' Waterfalls ('Allerheiligen-Wasserfälle').
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.