History
Ljosalfgard was the capital city of Alfheim. When the Dark Council waged war on the Light Elves, they marched forward to Ljosalfgard in order to confront Queen Aelsa. Thor arrived to help the Light Elves and hold the line while they retreated back to the city.[1]
The siege reached an end when Malekith brainwashed Queen Aelsa with magic to have her marry him, successfully becoming the King of Alfheim.[2] The Dark Elves proceeded to raze Alfheim and consume its resources. Once Malekith decided the realm had outlived its usefulness, he set Ljosalfgard on fire. Thor managed to extinguish the fire by casting a storm, but most of Ljosalfgard had already burned down.[3]