Ezekiel was sitting beside him so he naturally felt his surging wrath which prickled his scalp. He knows what he's like when he's mad. Angry Lukas is definitely a nope Lukas.
"They were the ones who established the empire during the first great war. Brought down a lot of kingdoms and nations, annexed them all. They were called the conquerors. After the magic was sealed, The Von Brandts were one of the few families who could use magic because they are the descendants of the chaos goddess. With that, their position as the empire's rulers remained unchanged."
Recalling the glory of the founding family brought a sense of awe to the emperor. He wasn't alive during those times but he could just imagine. To be able to stabilize the kingdom, conquering lands until they prospered as an empire, during the great wars of the past… How astounding the leadership would one have? Even retaining their bloodline as successors of the ever-growing kingdom despite political turmoils.