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 the design of each coat for the sake of demonstrating their separate character. It must soon thereafter have become apparent that if two-thirds of the design of a coat of arms could be squeezed into half of the shield there was no valid reason why the whole of the design could not be employed. This therefore became customary under the name of impalement, and the practice has ever since remained with us. Few examples indeed of dimidiation are to be met with, and as a practical method of conjunction, the practice was chiefly in vogue during the earlier part of the fourteenth century.

Occasionally quartered coats were dimidiated, in which case the first and third quarters of the husband's coat were conjoined with the second and fourth of the wife's. As far as outward appearance went, this practice resulted in the fact that no distinction existed from a plain quartered coat. Thus the seal of Margaret of Bavaria, Countess of Holland, and wife of John, Count de Nevers, in 1385 (afterwards Duke of Burgundy), bears a shield on which is apparently a simple instance of quartering, but really a dimidiated coat. The two coats to the dexter side of the palar line are: In chief Burgundy-Modern ("France-Ancient, a bordure compony argent and gules"), and in base Burgundy-Ancient. On the sinister side the coat in chief is Bavaria ("Bendy-lozengy argent and azure"); and the one in base contains the quartered arms of Flanders ("Or, a lion rampant sable"); and Holland ("Or, a lion rampant gules"); the lines dividing these latter quarters being omitted, as is usually found to be the case with this particular shield.

Certain examples can be found amongst the Royal Arms in England which show much earlier instances of dimidiation. The arms of Margaret of France, who died in 1319, the second queen of Edward I., as they remain on her tomb in Westminster Abbey, afford an example of this method of conjunction. The arms of England appear on the dexter side of the escocheon; and this coat undergoes a certain amount of curtailment, though the dimidiation is not complete, portions only of the hindmost parts of the lions being cut off by the palar line. The coat of France, on the sinister side, of course does not readily indicate the dimidiation.

Boutell, in his chapter on marshalling in "Heraldry, Historical and Popular," gives several early examples of dimidiation. The seal of Edmond Plantagenet, Earl of Cornwall (d. 1300), bears his arms (those of Richard, Earl of Cornwall, and King of the Romans) dimidiating those of his wife, Margaret de Clare. Here only the sinister half of his bordure is removed, while the Clare coat ("Or, three chevrons gules") is entirely dimidiated, and the chevrons are little distinguishable from bends. Both coats are dimidiated in other examples mentioned