Sir Bedivere stayed loyal to King Arthur throughout his life. Among other quests, he helped Arthur and Sir Kay fight the Giant of Mont St. Michel. Bedivere and King Arthur were among the few surivors of the Battle of Camlann. After the battle, at the request of the mortally wounded king, Bedivere threw Excalibur back to the Lady of the Lake. He then entered a hermitage where he spent the remainder of his life.
His tales are some of the oldest among those of King Arthur. Because he was mentioned in older stories, it is possible that he might have really lived.
His name in Welsh is Bedwyr Bedrydant (Bedivere of the Perfect Sinews). Stories described him as one handed yet still a very capable warrior.
External links
Early British Kingdoms: Sir Bedivere alias Bedwyr Ap Pedrod (http://www.earlybritishkingdoms.com/bios/bedivere.html)
Then Sir Lucan took up the king on the one part, and SirBedivere on the other part; and in the lifting, Sir Lucan fell in a swoon to the earth, for he was grievously wounded.
So Sir Launcelot departed and rode westerly, and there he sought many days; and at last he came to a nunnery, and was seen of Queen Guenever as he walked in the cloister; and when she saw him she swooned away.
And at last Sir Launcelot was ware of a hermitage and a chapel, and then he heard a little bell ring to mass; and thither he rode and alighted, and tied his horse to the gate, and heard mass.