The “Collégiale Sainte-Begge” and its treasure. Holy Beghe. the great-grandmother of Charlemagne. founded an abbey with seven churches. The collegiate church has been replacing these seven churches since 1762. It is the work of the architect Dewez. The building holds many treasures: the tomb of St. Beghe (12th century). 16th-century stalls. and beautiful pieces of jewelry dating from the 16th to the 20th century.