Sim. Na novela prequel "The Hedge Knight", o primeiro dos três prequels incluídos na coleção "Um Cavaleiro dos Sete Reinos", é estabelecido que qualquer cavaleiro pode fazer um cavaleiro.
"Hmpf." The man Plummer rubbed his nose. "Any knight can make a knight, it is true, though it is more customary to stand a vigil and be anointed by a septon before taking your vows."
"The lad has the truth of it," said Ser Lyonel Baratheon. "Do it, Ser Duncan. Any knight can make a knight."
De fato, isso acontece mais tarde na história, quando Sor Lyonel cavaleiro Raymund Fossoway.
Isso também é mencionado brevemente em Uma tempestade de espadas quando Arya conhece Beric Dondarrion e sua "Irmandade sem faixas":
"Knights?" Clegane made the word a sneer. "Dondarrion's a knight, but the rest of you are the sorriest lot of outlaws and broken men I've ever seen. I shit better men than you."
"Any knight can make a knight," said the scarecrow that was Beric Dondarrion, "and every man you see before you has felt a sword upon his shoulder. We are the forgotten fellowship."