The Oakeshott Type XVa was a direct response to the increased use of heavier armor types in the latter half of the 13th century.
Cut orientated swords were unable to do much more than percussive damage to a knight encased in his suit of armor, and so a new approach was needed..
The Type XVa was one such approach - and was believed to have been developed side by side as armor improved, so that by the 14th and 15th centuries it was a common solution to the knightly 'walking tanks'.
With a long and slender, acutely tapered blade that could deliver a serviceable cut to lightly armored opponents, it was clear that with its reinforced tip, it was designed to pry into and otherwise pierce through the chinks in a knights armor to get at the soft tissue below - and you can only imagine the shock and pain a knight may experience when pierced by such a blade through the armpit or (gasp) groin..
There are quite a few Oakeshott Type XVa swords currently in museums or private collections, with the most famous example being the so called sword of the "Black Prince" Edward of Woodstock - so called because of the suit of black plate armor he supposedly wore at the Battle of Crecy.
They are also the sword type frequently depicted in the fight manuals of 15th century masters and can, in many ways, be classified as a 'classic' example of a Longsword.
Considering the popularity of this sword type, both historically and now among enthusiasts of the Historical European Martial Arts (HEMA) it should come as no surprise that these swords are well represented in the functional replica sword market.
Those sticklers for historical accuracy, Albion Swords, have no fewer than 7 Type XVa to choose from in their Next Generation line alone - and most other sword manufacturers attempt to make at least one type XVa, usually based on the sword of Edward the Black Prince.
MyArmory has an excellent in depth article on Type XV swords and the sub-type XVa swords here which explains their history and lists some high end reproductions and images of actual antiques.
And of course, you can - and should - read more about these swords and all the others in the Oakeshott Typology in his book, Records of the Medieval Sword
I hope this information on Oakeshott Type XVa Swords has been helpful. To return to Oakeshott Typology Made Easy from Oakeshott Type XVa Swords, click here