A Frisian eagle is a specific heraldic eagle

Eagle (heraldry)

The eagle is used in heraldry as a charge, as a supporter, and as a crest. Parts of the eagle's body such as its head, wings or leg are also used as a charge or crest....

 in a coat of arms

Coat of arms

A coat of arms is a unique heraldic design on a shield or escutcheon or on a surcoat or tabard used to cover and protect armour and to identify the wearer. Thus the term is often stated as "coat-armour", because it was anciently displayed on the front of a coat of cloth...

.

It is a half of a black double-headed eagle

Double-headed eagle

The double-headed eagle is a common symbol in heraldry and vexillology. It is most commonly associated with the Byzantine Empire and the Holy Roman Empire. In Byzantine heraldry, the heads represent the dual sovereignty of the Emperor and/or dominance of the Byzantine Emperors over both East and...

 in the golden half of the shield parted per pale

Division of the field

In heraldry, the field of a shield can be divided into more than one area of different tinctures, usually following the lines of one of the ordinaries and carrying its name...

, most commonly on the dexter side

Dexter and sinister

Dexter and sinister are terms used in heraldry to refer to specific locations in an escutcheon bearing a coat of arms and by extension also to a crest. "Dexter" means to the right from the viewpoint of the bearer of the arms, to the left of that of the viewer...

. In other words, it is a double eagle which has been subject to dimidiation

Dimidiation

In heraldry, dimidiation is a method of joining two coats of arms.For a time, dimidiation preceded the method known as impalement. Whereas impalement involves placing the whole of both coats of arms side by side in the same shield, dimidiation involves placing the dexter half of one coat of arms...

.

The correct blazon

Blazon

In heraldry and heraldic vexillology, a blazon is a formal description of a coat of arms, flag or similar emblem, from which the reader can reconstruct the appropriate image...

 in Dutch is: Gedeeld: I in goud een zwarte Friese adelaar komende uit de deellijn [Per pale: Or, a Frisian eagle sable rising from the line of partition].

It appears in many coats of arms from the area of the old Frisia

Frisia

Frisia is a coastal region along the southeastern corner of the North Sea, i.e. the German Bight. Frisia is the traditional homeland of the Frisians, a Germanic people who speak Frisian, a language group closely related to the English language...

.

See also

• Karelsprivilege
  Karelsprivilege
  Karelsprivilege is a privilege that Charlemagne allegedly paid to the Frisians led by Magnus Forteman to thank them for the support that was given at the attack on Rome. Since the 13th century, the Frisians regularly mentioned Karelsprivilege in legal and historical works. The authenticity of the...
  
  
• Magnus Forteman
  Magnus Forteman
  Magnus Forteman , was the first potestaat and commander of Friesland which is now a province of Netherlands...
  
  
• Hessel Hermana
  Hessel Hermana
  Rodulf Haraldsson , sometimes Rudolf, from Old Norse Hróðulfr, was a Viking leader who raided the British Isles, West Francia, Frisia, and Lotharingia in the 860s and 870s. He was a son of Harald the Younger and thus a nephew of Rorik of Dorestad, and a relative of both Harald Klak and Godfrid...
  
  
• Grietman
  Grietman
  A grietman is partly a forerunner of the current rural mayor in the province of Friesland, and partly the forerunner of a judge. The area of jurisdiction was the municipality or gemeente...
  
  
• Reichsadler
  Reichsadler
  The Reichsadler was the heraldic eagle, derived from the Roman eagle standard, used by the Holy Roman Emperors and in modern coats of arms of Germany, including those of the German Empire, the Weimar Republic and Nazi Germany...