The Lord of Light by Cameron Kay

High Lord Jay Vitruvian is the Lord of Whispers, second in power to only the King, spymaster, swordmaster, and father of the first fae baby born in nearly twenty-five years. And he will stop at nothing to protect his King and his Kingdom.
High Lord Luke Bellamy is the Lord of Light, the most prolific healer and protector in Valencia and the newest member on the High Council to the King. The only thing more powerful than his ambition is his beautiful, blinding smile.
Lord Cassian Davante is a deadly warrior and the Commander of the Kingdom’s Northern Forces in the war against Valencia’s neighboring enemy, Alancia. He has a heart of gold and a body of pure, chiseled muscle.
Prince Nikolas Heroux is the Prince of Darkness and sole heir to the Valencian throne. His notoriety for aloofness is only surpassed by his reputation as the most gorgeous man in all of the Kingdom.
King Rexford Vandros isthe King of Light and Darkness, the King of Alancia, and the aggressor in the war against Valencia. He is beautiful and ruthless and cares about one thing and one thing only—power.
And all of these handsome, powerful men all have one thing in common…Alarie Armand. Alarie somehow finds herself in the middle of it all—war, magic, and love—and it is only her second year at the High Court.