House of Lannoy

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "House of Lannoy" – news · newspapers · books · scholar · JSTOR (March 2015) (Learn how and when to remove this message) This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (March 2015) (Learn how and when to remove this message) (Learn how and when to remove this message)

House of Lannoy
Country	Belgium
Founded	13th century
Founder	Gillion de l'Annoit
Titles	Lords of Leeuwerghem Lords of Molembais Lords of Maingoval Barons of Aix Barons of Clairvaux Barons of Sombreffe Counts of Lannoy Counts of Beaurepaire Counts of La Motterie Princes of Sulmona Prince of Rheina-Wolbecq
Estate(s)	Bornem Castle Anvaing Castle
Cadet branches	Lannoy-Clairvaux Lannoy-Beaurepaire Lannoy-Mangoval

The House of Lannoy is the name of an old and important Belgian noble family that takes its name from the town of Lannoy in northern France. The name comes from l'Annoy (or l'Annoit, from Latin alnetum), which means 'the alderwood' in Picard French of Flanders.