These men are not your usual squires encountered in the various courts of Pendor. These men, probably of noble origin, rather than be humble servants that clean up after a knight in exchange for their teachings in the art of fighting, have traveled for a fair while around the land, gaining experience from fights they've survived and from some other tasks they've fulfilled at the promise of rewards. This allowed them to get some decent equipment, wearing nice armor, arming themselves with good weapons and buying a good horse, which is almost always some kind of hunter that they will cling to as rogue knights, should they become one.
Rather than learn combat techniques under the strict tutelage of a knight, these fighters have learned various tricks from practical experience, either by themselves or from other passing warriors. As such, they might have a surprise ready for any fight. Despite this, they are not capable of standing up against tough opponents, as their equipment might not handle it, but they could get lucky and take down their foe with a strong blow, usually from a couched lance that many bring to bear. If forced to fight on foot, expect a large number of them to die depending on the type, as many neglect to bring a sword or axe and instead only have lances and a ranged weapon. By and large though, it depends on their commander what they will do, and if they'll survive. They could stay out of the fight, but they can also serve as medium cavalry, to flank/chase the enemy, but some may decide to give these boys the ultimate test of a head on charge due to the weapons they favor. It is at this stage in their development where they decide if they want to become actual Noble Rogue Knight, or forsake their original goal of knighthood and continue on on the path of the adventurer to become a mighty Hero Adventurer.
They can generally be encountered in small parties led by a one or more fully fledged rogue knights or heros. Most Rogue Knights and Adventurer Companies' unique spawns use these... Sir Boris the Raven recruits 30-80 Ravenstern ones for his army. Kodan Ironsword's army contains 20-50 of the Fierdsvain Squires. Oswald de Fleur fields 30-50 D'Shar riders .Sheik Shalavan also employs 90-120 of the D'Shar ones.
They are upgraded from their respective kingdom's Young Noble Adventurer for 40 d and are upgraded to Adventurer and their respective kingdom's Noble Rogue Knight for 80 d.
The D'Shar one is an exception. The upgrade from Young D'Shar Adventurer costs 80 d (40 more) and its upgrade to Adventurer and D'Shar Rogue Knight costs 120 d (again, 40 more).