TREGUIER  , a

port of western France, in the department of Cotes-du-Nord, 36 m . N.W. of St Brieuc by road . Pop . (1906), 2605 . The port is situated about 52 m. from the English Channel at the confluence of two streams that form the Treguier river; it carries on fishing and a coasting and small foreign trade . The cathedral, remarkable in having three towers over the transept, one of which is surmounted by a fine spire, dates from the 14th and 15th centuries . It contains the sumptuous modern mausoleum of St Yves (d . 1303), a canon of the cathedral, the building of which was largely due to him . To the south of the church there is a cloister (latter half of the 15th century) with graceful arcades . There is a statue of Ernest Renan, a native of the town . Saw-milling, boat-building and flax-stripping are carried on, together with trade in cereals, cloth, potatoes, &c . Treguier (Trecorum), which dates from the 6th century, grew up round a monastery founded by St Tugdual .

In the 9th century it became the seat of a bishopric, suppressed in 1790 .