Sorealle (Tales of Mimion, #25)

Maximillian of Sorealle: King Regnant despite the best efforts of some of his queendom's most powerful noblewomen to persuade or coerce him to marry. A neighboring queen begins massing an army, and his own people grow more and more anxious. One breaks ranks and launches a preemptive attack. Now Maximillian must hold the queendom together and fend off challengers from outside of and within his own realm.