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)“De gu. à trois croiss. tournés d'arg. C.: une aigle iss. au nat. D.: IN JUSTITIA VIRTUTES OMNES.”
A record of documented arms, meaning and origin, researched for the Simas family of France.
J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87
Blazon (the actual original written record)“De gu. à trois croiss. tournés d'arg. C.: une aigle iss. au nat. D.: IN JUSTITIA VIRTUTES OMNES.”

The Simas arms were recorded in Philadelphie, c. 1725.
Arms such as these were typically recorded in Bretagne.
More families held coats of arms in Bretagne than anywhere else in France. The land was divided into many small estates rather than a few large ones, so far more households counted as gentry, and each needed a shield of its own to be told apart.
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 family name Simas has deep roots in the Brittany region of France, where records confirm members of the family were living as early as 1725. During the eighteenth century, Brittany was a distinct province with its own unique customs and language traditions. Families in this area often lived in small, tight-knit rural communities where they worked as farmers or skilled tradespeople. The name itself likely evolved from local linguistic patterns common to the region, reflecting the way names were spoken and recorded by parish clerks during that era. As the family grew, they remained connected to the landscape of western France, contributing to the local culture and the agricultural life that defined the Breton countryside for generations.
Derived from the Hebrew name Shim'on meaning he has heard.