Dimidiation

In this article, we will explore the impact that Dimidiation has had on different aspects of contemporary society. Since its appearance, Dimidiation has generated debates, controversies and significant changes in various areas. Through detailed analysis, we will examine how Dimidiation has influenced politics, economics, culture, technology, and other important aspects of our daily lives. Additionally, we will delve into the past, present and future of Dimidiation, to better understand its evolution and its meaning in the current context. This article aims to offer a comprehensive and in-depth vision of Dimidiation, with the aim of providing the reader with a broader and enriching understanding of this phenomenon.

This article is about heraldry. For the mathematical operation, see division by two.
Coat of arms of Hastings, showing a partially dimidiated shield, where the front halves of the upper and lower lions are joined to the rear halves of ships. This motif features widely in the heraldry of the Cinque Ports.
Horizontally dimidiated rabbit and fish, arms of the town and gmina of Prochowice, SW Poland. Horizontal dimidiations are rare, if not unknown, in English heraldry.
Coat of arms of the consolidated commune of Les Andelys, dimidiated (French: Mi-parti) per pale, three droops of grapes and three castle keeps. Dimidiations are rare in French heraldry.
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In heraldry, dimidiation is a method of marshalling (heraldically combining) 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 alongside the sinister half of the other. In the case of marriage, the dexter half of the husband's arms would be placed alongside the sinister half of the wife's arms.

The practice fell out of use because the result was not always aesthetically pleasing (sometimes creating strange hybrids), and also because in some cases, it would have resulted in a shield that confusingly looked like one coat of arms rather than a combination of two. For instance, a bend combined with a bend sinister might result in a combination that simply looked like a chevron, thus hiding the fact that two coats of arms had been combined.

In order to avoid these drawbacks, it became customary to use more than half of each coat of arms when combining them through dimidiation. Once this practice had begun, the logical progression was to include the whole of both coats of arms in the new shield, so that in effect, impalement replaced dimidiation as a method of combining coats of arms.

A general rule which carries over from dimidiation to impalement is that if a coat of arms with a bordure (or tressure, orle, etc.) is impaled, the bordure should not continue down the line of impalement.

Gallery

  • Example of two coats dimidiated
    Example of two coats dimidiated
  • The same two coats impaled
    The same two coats impaled
  • When the dexter half of a bend sinister is dimidiated with the sinister half of a bend, the result would look like a chevron
    When the dexter half of a bend sinister is dimidiated with the sinister half of a bend, the result would look like a chevron
  • Tressure does not continue down the line of impalement
    Tressure does not continue down the line of impalement
  • Coat of arms of Anne de Pisseleu, Countess of Penthièvre, Duchess of Étampes
    Coat of arms of Anne de Pisseleu, Countess of Penthièvre, Duchess of Étampes

See also

Wikimedia Commons has media related to Dimidiation in heraldry.

Sources

Wikious
Boobota
Sagapedia