The only other flag form to which we need make any very definite reference is the Guidon. The word is derived from the {22} French _guide-homme_, but in the lax spelling of mediæval days it undergoes many perversions, such as guydhome, guydon, gytton, geton, and such-like more or less barbarous renderings. Guidon is the regulation name now applied to the small standards borne by the squadrons of some of our cavalry regiments. The Queen's guidon is borne by the first squadron; this is always of crimson silk; the others are the colour of the regimental facings. The modern cavalry guidon is square in form, and richly embroidered, fringed, and tasselled. A mediæval writer on the subject lays down the law that "a guydhome must be two and a half yardes or three yardes longe, and therein shall be no armes putt, but only the man's crest, cognizance, and device, and from that, from his standard or streamer a man may flee; but not from his banner or pennon bearinge his armes." The guidon is largely employed at State or ceremonious funeral processions; we see it borne, for instance, in the illustrations of the funeral of Monk in 1670, of Nelson in 1806, of Wellington in 1852. In all these cases it is rounded in form, as in Fig. 28. Like the standard, the guidon bears motto and device, but it is smaller, and has not the elongated form, nor does it bear the Cross of St. George. In divers countries and periods very diverse forms may be encountered, and to these various names have been assigned, but it is needless to pursue their investigation at any length, as in some cases the forms are quite obsolete; in other cases, while its form is known to us its name is lost, while in yet other instances we have various old names of flags mentioned by the chroniclers and poets to which we are unable now to assign any very definite notion of their form. In some cases, again, the form we encounter may be of some eccentric individuality that no man ever saw before, or ever wants to see again, or, as in Fig. 33, so slightly divergent from ordinary type as to scarcely need a distinctive name. One of the flags represented in the Bayeux tapestry is semi-circular. Fig. 32 defies classification, unless we regard it as a pennon that, by snipping, has travelled three-quarters of the way towards being a banner. Fig. 35, sketched from a MS. of the early part of the fourteenth century, in the British Museum, is of somewhat curious and abnormal form. It is of religious type, and bears the Agnus Dei. The original is in a letter of Philippe de Mezières, pleading for peace and friendship between Charles VI. of France and Richard II. of England.