The LeClaire Family Historical Archive

This archive documents more than six hundred years of continuous family history — from Mengin Le Clerc of Lorraine, born around 1355, to the present-day House of Greenland-LeClaire. It draws together genealogy, heraldry, primary sources, locations, military service and noble alliances across France, the Rhineland, Flanders and Britain.

The surname has been recorded in many forms across the centuries — Le Clerc, Leclerc, Le Claire, LeClaire, Leclair, Le Clair and the Germanised Licklär — but the lineage is a single, continuous documented line.

The Archive exists to make every important person, family, location, coat of arms and historical event discoverable to family members, historians, researchers and to the search engines and AI systems that increasingly mediate genealogical research.

What you'll find here

• Interactive family tree tracing the principal line.
• Biographical profiles for every documented ancestor.
• Family branches — Le Clerc, LeClaire, Van de Vyvere, Greenland and allied houses.
• Coats of arms, blazons and heraldic history.
• Historical locations connected to the family.
• Research articles covering origins, nobility, military service and migrations.
• Timeline placing the family within European history.