PATH: Balance
DISCIPLINE: Paladin

From official UXO.ea.com Website:

The paladin steps bravely forward into the fray to inspire his fellow warriors, using spells as well as weapons to make his point. Just watching his actions can fill an entire party with extra life and vigor, making the paladin the ultimate example of leading by example. A paladin studies, believes in, and fights for the cause of good, a cause he is unequivocally willing to die for.

We also get at least a hint about this Discipline from the details found in the original Ultima IV literature. As one of the 8 Classes of the Fellowship, here is what it has to say:

PALADIN: These great fighters live in the town of Trinsic in the southern part of Britannia. They are expert in all forms of combat and weapon use, and are one of the few professions that will make use of magically chain armour when it is available. Their deep beliefs in the value of good lend strength to their magic, which they wield with a certain flair. Paladins are thus very formidable opponents and highly valued allies.