Holy Trinity Church, Baroque pilgrimage church in Moosthenning, Germany

Holy Trinity Church is a spacious baroque pilgrimage church with a three-bay nave and a slightly narrower two-bay east choir ending in a three-sided apse. Its walls are 1.38 metres thick, and a three-storey onion-domed tower over a square plan stands on the west side, its ground floor serving as the entrance. A small chapel with a figure of the Scourged Saviour is attached to the north side.

The pilgrimage began with a painted Trinity panel hung on a spruce in the forest near Rimbach in 1687, commissioned by Georg Stiller, court mark administrator of Hofdorf, after he lost his way three times. A wooden chapel followed in 1690, replaced by a small masonry church, and in 1693 work started on the present baroque church under Dingolfing master mason Georg Weigenthaler. It was consecrated on 13 June 1714 by Regensburg auxiliary bishop Albert Ernst von Wartenberg; the tower was finished in 1739 and rebuilt after a storm in 1770.

The pilgrimage began after 1687, when Georg Stiller, steward of Hofdorf, had a painted panel hung on a spruce here following a vow; it remains the church's grace image above the tabernacle. The parish feast is celebrated on Trinity Sunday with a two-day fair between church and inn, and a Eucharistic triduum is held at Pentecost. A Messbund brotherhood founded shortly after 1816 still gathers for Mass on the last Sunday of each month.

The church stands on the Dreifaltigkeitsberg at 469 m, about 100 m above the Isar valley and right on the Staatsstraße 2141 between Landshut and Straubing. It is roughly 2.5 km from Weng and 6.5 km from Mengkofen. Entry is through the ground floor of the west tower, which once served as the bell chamber. The pilgrimage festival is held on Trinity Sunday, the first Sunday after Pentecost, with a two-day fair on the square between the church and the neighbouring inn.

The 1687 votive image above the tabernacle is the reason the pilgrimage exists: Georg Stiller, a monastery judge from Niederviehbach, had lost his way three times near a spruce tree and three times reached the same paper image there, so he had a painted panel hung in thanks. The small image is framed by a radiant halo and clouds.