King Banhammer was the last ruler of Faq prior to its fall. Jillian Zamussels was his daughter and a heir to the throne.
He relied heavily on the use of magic and had multiple Casters. He had few warlords and did not think much of them.
After his Predictamancer foretold the eventual fall of the kingdom, King Banhammer ordered an heir popped. He supposedly expected a Caster, but instead a Warlord, Jillian, appeared. According to Jillian he liked his rules, was obsessed with philosophy and despised war. That seemed to be the reason for problems in their relationship.
Readers are led to believe that Faq has fallen in an quick attack from Stanley the Plaid and that King Banhammer was croaked as a result.