Crown (heraldry) in the context of "Heraldic achievement"

Fürst (German pronunciation: [ˈfʏʁst] , female form Fürstin, plural Fürsten; from Old High German furisto, "the first", a translation of the Latin princeps) is a German word for a ruler as well as a princely title. Fürsten were, starting in the Middle Ages, members of the highest nobility who ruled over states of the Holy Roman Empire and later its former territories, below the ruling Kaiser (emperor) or König (king).

In heraldry, an achievement, armorial achievement or heraldic achievement (historical: hatchment) is a full display or depiction of all the heraldic components to which the bearer of a coat of arms is entitled. An achievement comprises not only the arms displayed on the escutcheon, the central element, but also the following elements surrounding it (from top to bottom):

• Slogan or war-cry
• Mantle and pavilion
• Crest placed atop a:
• Torse (or cap of maintenance as a special honour)
• Mantling
• Helm of appropriate variety; if holder of higher rank than a baronet, issuing from a:
• Coronet or crown (not used by baronets), of appropriate variety.
• Console (decorative or aesthetic in purpose, and not officially part of the armorial grant)
• Supporters (if the bearer is entitled to them, generally in modern usage not baronets), which may stand on a compartment
• Motto, if possessed
• Order, if possessed
• Badge, if possessed

Ermine (/ˈɜːrmɪn/) in heraldry is a fur, a type of tincture, consisting of a white background with a pattern of black shapes representing the winter coat of the stoat (a species of weasel with white fur and a black-tipped tail). The linings of medieval coronation cloaks and some other garments, usually reserved for use by high-ranking peers and royalty, were made by sewing many ermine furs together to produce a luxurious white fur with patterns of hanging black-tipped tails. Due largely to the association of the ermine fur with the linings of coronation cloaks, crowns and peerage caps, the heraldic tincture of ermine was usually reserved to similar applications in heraldry (i.e., the linings of crowns and chapeaux and of the royal canopy). In heraldry it has become especially associated with the Duchy of Brittany and Breton heraldry.