House of Lannoy

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.

The oldest known ancestor is Gillion de l'Annoit, who lived in the 13th century. Many of his descendants were members of the Order of the Golden Fleece. They played a prominent role in Flanders during the Middle Ages. Different family branches and lines existed amongst the Lords of Beaurepaire, Clervaux, Princes of Sulmona and Princes of Rheina-Wolbeck.

One branch of the family supposedly became the influential American Delano family through its progenitor, Philip Delano. However, the possible connection between the two has never been proven. A branch of the family supposedly engaged in the transatlantic slave trade, resulting in an existing lineage of the family in South America and the Caribbean.^{[citation needed]}

Molembaix was a place in the region of Oostkapelle, where the .

Guillebert I de Lannoy, Lord of Santes;
Married to Catherine de Saint-Aubin, Lady of Molembais:

Leeuwergem is a small village in Flanders, it has an 18th century castle. The first small castle in Leeuwergem was built by Valentin de Lannoy in the 17th century. The branch of the Lords of Leeuwergem became extinct after 3 generations. The branch of the Counts of la Motterie was known to have multiple men in military service of the Crown.

Jacques de Lannoy, Lord of la Motterie, died 1587:
Married to Susanne of Noyelles.

The county of Beaurepaire in Avesnes was inherited by descendants of Louise-Michèle d'Oignies: her father Maximilien d'Oignies was the first Count of Beaurepaire. His youngest grandson Ignace-Philippe became the 3rd Count of Beaurepaire.