Nobles of the sword would sometimes take a knights place and nobles of the robe would more than likely take the kings place.

Many nobles have tried but I'm not so sure exactly!!:-):)

I can think of several things a knight would have. Some are a horse, a suit of armor, a sword, a lance, and shield. Knights were nobles and only nobles could be knights.

I have not found it yet in my social studies book

There were two things that persuaded the nobles to recognize King Arthur as their king. These two things were the persistence of the peasants to have him pull the sword and him actually pulling the word in front of everyone.