1911 Encyclopædia Britannica/Tirlemont
TIRLEMONT (Flemish Thienen), a town of Belgium in the province of Brabant, 11 m. S.E. of Louvain. Pop. (1904), 18,340. It still preserves its enceinte, 6 m. in circumference. The principal church, Notre Dame du Lac, begun in the 12th and enlarged in the 15th centuries, is still unfinished. The church of St Germain also dates from the 12th century, and contains a fine altar-piece by Wappers. John Bolland, the Jesuit who began the collection of the Acta sanctorum, was born here in 1596. The principal industries are brewing, soap manufacture and tanning.