The abbey was established by Heisterbach Abbey, which was created by Himmerod Abbey, which in turn was founded from Clairvaux Abbey in 1134, in a direct succession.
In 1212, it was first founded in Neunkhausen, made possible by a donation from Eberhard of Arenberg and his wife Adelheid von Molsberg.
The site was abandoned because of the climate and soil, and the monastery was transferred to the present location in 1222.
According to legend, the abbot had a dream of a hawthorn bush that flowered in winter, which led him to choose the new site.
The first church there was consecrated on 27 December 1227 under Conrad, the third abbot.
The monastery at the time belonged to the Diocese of Cologne.

From 1476, lay people were permitted to attend services in the abbey church, and in 1485 the pilgrimage day was made the octave of Corpus Christi.
From 1561, the Counts of Sayn introduced the Reformation in their territories.
In the Thirty Years' War, Sweden claimed the property as Swedish crown land on 3 October 1633, expelling the brothers and vandalizing the premises.
Some brothers returned when the Swedes left.
However, abbot Johannes Wittig lived with only one brother and one novice there in 1637.
After the war, the monastery flourished again, and most present buildings were erected.
Under abbot Benedikt Bach, the church was decorated in Baroque style.
The old buildings were demolished and replaced from 1735 to 1751 under Petrus Emons.

The monastery served as an infirmary during the War of the First Coalition in 1794/95 and 1796/97.
On 19 October 1802, the abbey was dissolved as part of secularisation and was given to Frederick William, Prince of Nassau-Weilburg.
The last brothers left in 1803, but Catholic masses were still held.
From 1831, masses were officially tolerated by the Nassau government, when the abbey church became the church of a new parish, Marienstatt, saving it from demolition.
In 1842, Nassau County bought the buildings back in poor condition, but plans for a workhouse were not carried out.
On 18 May 1864 the county sold Marienstatt to the Bishop of Limburg, Peter Joseph Blum, who established a home for neglected boys.
It was directed by members of the Congregation of the Holy Spirit.
When the order was dissolved during the 1873 Kulturkampf, diocesan priests took over.
They were supported by sisters of the Poor Handmaids of Jesus Christ.
Eventually, the institution was moved to Kloster Marienhausen in Aulhausen.
In 1888, the abbey was bought back by brothers of the Wettingen-Mehrerau Abbey.
The abbot (and later Bishop of Limburg) Dominikus Willi cared for a new settlement, now as part of the Mehrerauer Kongregation.

In 1909, abbot Konrad II Kolb built a library and in 1910 opened an Oblatenschule, a school for the preparation of young men for the order.
During the Nazi regime, the abbey was almost closed.
During World War II, it served again as an infirmary, and as a home for children from Dormagen, senior citizens from Frankfurt am Main, and the Jesuit college Sankt Georgen.

After the war, the school was reopened and expanded into a gymnasium with boarding facility, Privates Gymnasium Marienstatt.
The former boarding house is now a guest house, with school rooms in the basement.
The church belongs to the state of Rhineland-Palatinate, while the other buildings belong to the Cistercian abbey.
In 2015, the parish was merged into a larger parish, Maria Himmelfahrt Hachenburg.
The abbey was established by Heisterbach Abbey, which was created by Himmerod Abbey, which in turn was founded from Clairvaux Abbey in 1134, in a direct succession. In 1212, it was first founded in Neunkhausen, made possible by a donation from Eberhard of Arenberg and his wife Adelheid von Molsberg. The site was abandoned because of the climate and soil, and the monastery was transferred to the present location in 1222. According to legend, the abbot had a dream of a hawthorn bush that flowered in winter, which led him to choose the new site. The first church there was consecrated on 27 December 1227 under Conrad, the third abbot. The monastery at the time belonged to the Diocese of Cologne.
From 1476, lay people were permitted to attend services in the abbey church, and in 1485 the pilgrimage day was made the octave of Corpus Christi. From 1561, the Counts of Sayn introduced the Reformation in their territories. In the Thirty Years' War, Sweden claimed the property as Swedish crown land on 3 October 1633, expelling the brothers and vandalizing the premises. Some brothers returned when the Swedes left. However, abbot Johannes Wittig lived with only one brother and one novice there in 1637. After the war, the monastery flourished again, and most present buildings were erected. Under abbot Benedikt Bach, the church was decorated in Baroque style. The old buildings were demolished and replaced from 1735 to 1751 under Petrus Emons.
The monastery served as an infirmary during the War of the First Coalition in 1794/95 and 1796/97. On 19 October 1802, the abbey was dissolved as part of secularisation and was given to Frederick William, Prince of Nassau-Weilburg. The last brothers left in 1803, but Catholic masses were still held. From 1831, masses were officially tolerated by the Nassau government, when the abbey church became the church of a new parish, Marienstatt, saving it from demolition. In 1842, Nassau County bought the buildings back in poor condition, but plans for a workhouse were not carried out. On 18 May 1864 the county sold Marienstatt to the Bishop of Limburg, Peter Joseph Blum, who established a home for neglected boys. It was directed by members of the Congregation of the Holy Spirit. When the order was dissolved during the 1873 Kulturkampf, diocesan priests took over. They were supported by sisters of the Poor Handmaids of Jesus Christ. Eventually, the institution was moved to Kloster Marienhausen in Aulhausen. In 1888, the abbey was bought back by brothers of the Wettingen-Mehrerau Abbey. The abbot (and later Bishop of Limburg) Dominikus Willi cared for a new settlement, now as part of the Mehrerauer Kongregation.
In 1909, abbot Konrad II Kolb built a library and in 1910 opened an Oblatenschule, a school for the preparation of young men for the order. During the Nazi regime, the abbey was almost closed. During World War II, it served again as an infirmary, and as a home for children from Dormagen, senior citizens from Frankfurt am Main, and the Jesuit college Sankt Georgen.
After the war, the school was reopened and expanded into a gymnasium with boarding facility, Privates Gymnasium Marienstatt. The former boarding house is now a guest house, with school rooms in the basement. The church belongs to the state of Rhineland-Palatinate, while the other buildings belong to the Cistercian abbey. In 2015, the parish was merged into a larger parish, Maria Himmelfahrt Hachenburg.
Marienstatt Abbey