Main-gauche The main-gauche (
French for "left hand", ) was used mainly to assist in defense by parrying enemy thrusts, while the dominant hand wielded a
rapier or similar longer weapon intended for one-handed use. It was a relatively large dagger, having a longer and heavier
blade (often measuring or slightly more in length) and very long, straight quillons. Its most characteristic feature was a wide knuckleguard that curved from the quillons to the
pommel and protected the hand. The guard was usually (but not always) triangular in outline, and the quillons typically measured or more from tip to tip. Despite the name
swordbreaker, it is uncertain whether they could in fact break sword blades as suggested by some scholars, as swords of this era were intended to stand up to substantial forces, well in excess of what could be generated by a fighter's off-hand. Swords are sometimes depicted in
Fechtbüchern as withstanding a two-handed attempt to break them (or show off their resilience). Late Renaissance rapiers and smallswords may not be as robust as the cutting swords of earlier times, however, and have indeed been known to break on occasion, so the claim may have more veracity in relation to the typical civilian weapons of this period. The term is also applied in modern times to the various devices (such as hooks or spikes) found on some
bucklers which served the same purpose as the parrying dagger to entrap an opponent's blade.
Trident dagger , France.
Trident daggers (or triple daggers) have blades divided lengthwise into three parts which fold together to resemble a conventional blade. When a mechanism near the hilt is released the two side blades open under spring pressure to form the "trident", flying apart until they are stopped by the ends of the curved quillons. This creates a dagger capable of trapping blades more securely and easily. Like the swordbreaker, the triple dagger was a rare form of parrying dagger compared to the main-gauche. ==Modern usage==