Talbot's pretty amazing. He's the English noble soldier at his best, like a cross between Faramir and Dick Winters from Band of Brothers. He's brave, loyal, noble, caring to his men, loved by his family, fearsome to the enemy… you get the idea. He's everything the English need in a commander. If there were more like him (and if Henry VI were more like him… be sure to read up on the King elsewhere in this section), England wouldn't be in trouble.
Unfortunately, because not all the English nobility is like him, Talbot is killed by the French when Somerset and York can't get along well enough to cooperate on sending him reinforcements. They're not out to get Talbot, but they are out to get each other, and unfortunately his death ends up being the collateral damage of their quarrel.