Coat of Arms & Family Crest Details
J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87
Blazon (the actual original written record)“D'or au lion de gu.; au chef de sa., ch. de trois merlettes d'arg.”
A record of documented arms, meaning and origin, researched for the De Leon family lines. Documented in 2 countries.
J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87
Blazon (the actual original written record)“D'or au lion de gu.; au chef de sa., ch. de trois merlettes d'arg.”

The De Leon arms were recorded in Belgium, c. 1737.
Arms such as these were typically recorded in Brabant.
Brabant lay at the heart of the Low Countries, where the trade routes met. Its towns were wealthy and its landowners many, and both kinds of family kept arms, which is why the region is so heavily represented.
This is where the arms were entered in the register. Families often moved to other parts of the country, so the same name can turn up in more than one region.
In Belgium, a coat of arms is considered personal property that is passed down through the male line to legitimate descendants. Families often use the same shield design across generations to show their shared heritage. If a branch of the family wants to change the design, they must apply for an official update to their specific version of the arms.
The history of the De Leon family in Belgium is deeply rooted in the social and economic landscape of the Duchy of Brabant during the eighteenth century. By 1737, records confirm that members of the family were already established residents in this region, which was then under the control of the Austrian Netherlands. The name itself reflects a historical connection to the Iberian Peninsula, suggesting that the family likely migrated north due to shifting trade routes or religious movements that defined European life in earlier centuries. Once settled in Brabant, the family integrated into the local community by participating in the active urban life of cities like Brussels or Leuven. They likely engaged in the merchant classes or local administration, as these were common paths for families of foreign origin to gain stability in the region. Over time, the De Leon name became a permanent part of the local demographic, representing the long history of movement and cultural blending that shaped the Belgian population.
J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87
Blazon (the actual original written record)“D'azur au lion d'arg., percé d'une épée d'arg., garnie d'or, tenue par un bras, arm. d'arg., iss. du canton sen. de la p.; au chef d'or, ch. de trois étoiles de gu.”

The De Leon arms were recorded in Strasbourg, c. 1809.
This is where the arms were entered in the register. Families often moved to other parts of the country, so the same name can turn up in more than one region.
In France, a coat of arms was a mark of honor that passed down through the male line to all legitimate descendants. Families often used the same shield without changes to show their shared heritage. If a branch wanted to stand out, they could add a small mark to their shield to show their specific place in the family tree.
The history of the De Leon family in France is deeply tied to the shifting borders and legal reforms of the early nineteenth century. By 1809, members of the family were documented as residents of Strasbourg, a city that served as a vital cultural bridge between French and Germanic traditions. During this era, the Napoleonic administration mandated that all citizens adopt fixed surnames to improve tax collection and military conscription. Many families with roots in the Alsace region chose or solidified names that reflected their geographic origins or ancestral connections to the broader European continent. The presence of the De Leon name in Strasbourg suggests that the family was part of a mobile population navigating the complex social changes of the First French Empire. As the region transitioned through different political regimes, the family integrated into the local urban economy, contributing to the professional and commercial life of the city during a time of significant administrative modernization.
Latin term for a lion, representing strength and courage.