The bachelor and the banneret were both equally knights, only the one was of greater distinction and authority 3 Du Cange, Dissertation, xxi., and Lancelot du Lac, among other romances.
His son and heir, another Sir John, admiral of the king's navy in the north, was a banneret who displayed his banner in the army that laid siege to Calais.
It was his function also to display and guard in battle the banner of the baron or banneret or the pennon of the knight he served, to raise him from the ground if he were unhorsed, to supply him with another or his own horse if his was disabled or killed, to receive and keep any prisoners he might take, to fight by his side if he was unequally matched, to rescue him if captured, to bear him to a place of safety if wounded, and to bury him honourably when dead.
The main divisions of the army were distributed under the royal and other principal standards, smaller divisions under the banners of some of the greater nobility or of knights banneret, and smaller divisions still under the pennons of knights or, as in distinction from knights banneret they came to be called, knights bachelors.
But the banner of the banneret always implied a more or less extensive command, while every knight was entitled to bear a pennon and every squire a pencel.
Created Sir John Smith a banneret after the battle of Edgehill in 1642 for having rescued the royal standard from the enemy.
The last authentic instance of the creation of a knight banneret was that of John Smith, created banneret at the battle of Edgehill by Charles I.