Niederaltaich Abbey (Abtei orKloster Niederaltaich) is a house of theBenedictine Order founded in 741,[1] situated in the village ofNiederalteich on theDanube inBavaria.[a]

After its foundation in 741 by DukeOdilo of Bavaria, the monastery, dedicated toSaint Maurice, was settled by monks fromReichenau Abbey underSaint Pirmin. Eberswind, the first abbot, is considered the compiler of the"Lex Baiuvariorum", the first code of law of the Bavarian people.[2]
The monastery brought great areas ofLower Bavaria into cultivation as far as the territory of the presentCzech Republic, and founded 120 settlements in theBavarian Forest. In the reigns ofCharlemagne andLouis the German the abbey extended its possessions as far as theWachau. AbbotGozbald (825–855) was the latter's arch-chancellor.[2]
In 848 the monastery received the right of free election of its abbots, and in 857 becamereichsunmittelbar (that is, free of all territorial lordship except that of the monarchy itself). By the end of the 9th century over 50 monks had become abbots in other monasteries or been appointed bishops. The 10th century however brought the turmoil of theHungarian incursions, and between 950 and 990 the abbey was a collegiate foundation (Kollegiatstift).[2]
Under Abbot Gotthard or Godehard of Hildesheim (996–1022), better known asSaint Gotthard, the abbey entered a renewed golden age. Saint Gotthard, who along with Duke Henry of Bavaria, later EmperorHenry II, was a key supporter of contemporary monastic reform, was probably the abbey's best-known abbot. He later becameBishop of Hildesheim, where he was buried.[3]
The abbey was granted by EmperorFrederick Barbarossa to theBishop of Bamberg in 1152, and as a consequence lost itsreichsunmittelbar status. In 1242 theWittelsbachs inherited from the Counts ofBogen the office ofVogt (lord protector) of the abbey.[4]
Important abbots from this time on wereHermann (in office from 1242 to 1273), the author of the "Annales Hermanni",[5] and theReformation abbots Kilian Weybeck (1503 to 1534) and Paulus Gmainer (1550 to 1585). Construction of the Gothic monastery church was begun in 1260 under Abbot Herman.[4] Vitus Bacheneder, abbot between 1651 and 1666, created after theThirty Years' War the foundations of the economic prosperity of the abbey in theBaroque period. Under Abbot Joscio Hamberger (1700–1739) the creation of theBaroque abbey and church took place, as well as the construction of the school. The church was the first commission for the later famous Baroque architectJohann Michael Fischer, who worked on it from 1724–1726.
The abbey was dissolved at thesecularisation of Bavaria in 1803.[4] A fire in the church in 1813, caused by a bolt of lightning, signalled the beginning of the demolition of the Baroque complex. The monastery buildings were sold off to private individuals. The side chapels of the abbey church, theGothic cloisters and adjoining buildings, as well as the parish church, were demolished.
In 1918, with the help of a legacy from the theology professor Franz Xaver Knabenbauer, a native of Niederalteich, a monastery was re-established here and settled fromMetten Abbey. In 1932 the monastery church received from thepope the title of "Basilica minor".
In 1949, under Abbot Emmanuel Maria Heufelder, the monastery became once again an independent abbey.
In 1946 theSt.-Gotthard-Gymnasium ("St.-Gotthard-Grammar School") was refounded after having been closed by the Nazis. The remaining parts of the Baroque buildings were incorporated into new buildings in 1953–1954 and gradually renovated. In 1959 theKatholische Landvolkshochschule ("Catholic State Secondary School") was established here, and between 1971 and 1973 a new school building was erected for theSt.-Gotthard-Gymnasium because the number of pupils had continually risen in the 1960s. Its boarding facilities, however, were shut down in 1994 and converted in 1999–2001 into the St. Pirmin Conference and Hospitality Centre. In 2006 and 2007 the school building of theSt.-Gotthard-Gymnasium was refurbished. The school itself is now aGanztagschule, which provides obligatory lessons from 7.45 a.m. until 4.00 p.m..
Niederaltaich Abbey has been a member of theBavarian Congregation of theBenedictine Confederation since its re-foundation in 1918.
In 1924Pope Pius XI gave the Benedictines the task of making the theology and spirituality of the east known in the west.
Niederaltaich, as a consequence of these ecumenical goals, has since been a monastery of two ecclesasiatical traditions or rites, one part of the monks living and praying according to the Roman rite, the other part according to the Byzantine rite.
TheEucharist and theDivine Office are celebrated by the monks in theGerman language in both rites, and in addition, liturgical texts fromChurch Slavonic andGreek have also been translated.
In 1986 a church and a chapel, both dedicated to BishopNicholas of Myra (Saint Nicholas), were set up for the celebration of theByzantine rite in the buildings of the former monastery brewery.[6]
48°45′58″N13°01′40″E / 48.76611°N 13.02778°E /48.76611; 13.02778