Temple Bruer was founded on Lincoln Heath, in the North Kesteven district of Lincolnshire, 10 miles S of Lincoln. Of the centrally planned preceptory church here which belonged to the Knights Templar, only a single tower still stands. The tower belongs to the late-12thc, although the doorway in the N wall appears to be mid-13thc work. Buck's engraving of 1726 shows a circular nave and a straight 2-bay chancel with the tower that remains on the E side of it, presumably one of a symmetrical pair. This was restored in the ealy 20thc. Reset Romanesque sculptural fragments are found inside the 1st floor chamber.

The preceptory was founded late in the reign of Henry II (1152-89) by William of Ashby, who entered the fraternity shortly afterwards. It was of some size and considerable importance. A license to crenellate was granted in 1306, six years before the order was suppressed by Pope Clement V, and the house eventually passed to the Knights Hospitaller in 1338. The Commandery was dissolved in 1541.

The most likely source of the intersecting arcade fragment is from a baptismal font.