- Mercx, Pieter-Paul
- (?-1685)Nothing is known of the date or place of birth of Pieter-Paul Mercx. An architect and engineer, Mercx devised plans to prevent flooding of the Senne River and to construct a canal to Charleroi, built several triumphal arches in 1670, and directed work to improve the city's fortifications in 1672. In 1674, he was named architect of the city and architect to the king. He died in Brussels on 15 March 1685.
Historical Dictionary of Brussels. Paul F. State.