A squire was a Middle Age term for a knight's assistant.

In the Middle Ages the education of a knight followed strict guidelines. In the beginning a young nobleman was "apprenticed" to a knight as a page. When he turned 14, the page would be named squire. The squire served the knight as his assistant, carried his weapons, shield or armour, and had to defend his master in battle.

Gradually the squire would be trained as a knight, and received his knighthood upon completion. He could then employ a squire of his own.

There was no limit on how many squires and pages a knight could have, but a squire and page could only serve one knight.