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 à un coeur de gu., ch. d'un oeil humain au nat.”
A record of documented arms, meaning and origin, researched for the Hartzog family of Netherlands.
J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87
Blazon (the actual original written record)“D'or à un coeur de gu., ch. d'un oeil humain au nat.”

The Hartzog arms were recorded in Netherlands, c. 1815.
Arms such as these were typically recorded in Friesland.
Friesland was low, wet country on the northern coast of the Netherlands, farmed by families who had held the same land for centuries. Free landholders were unusually common there, and a free landholder could carry arms.
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 the Netherlands, coats of arms were often used by noble families and those who held specific public offices. These arms were passed down through the generations to legitimate descendants. Younger branches of a family usually kept the original design without needing to add special marks. This system ensured that the family identity remained clear and consistent over many years.
The family name Hartzog is deeply connected to the historical region of Friesland, a coastal area in the northern Netherlands. By 1815, records confirm that members of the family were established residents of this territory, which was known for its unique language and independent spirit. The name likely evolved from Germanic roots, as the region experienced significant cultural shifts during the early nineteenth century following the Napoleonic Wars. Families living in Friesland during this period were often involved in agriculture or maritime trade, reflecting the flat, water-rich landscape of the province. As the Netherlands transitioned into a unified kingdom, the Hartzog family became part of the growing administrative record-keeping systems that tracked citizens across the region. This era marked a time of transition where local families began to solidify their surnames within official civil registries.
A title of nobility equivalent to a duke or leader.