Liam Trollbane

Prince Liam Trollbane was the father of Thoras Trollbane and the Grandfather of Galen Trollbane.

He is known as one of the Kings of the Kingdom of Sstromgarde and for the creation of the Caretakers.

It is said that Prince Liam was so impressed with a servant of his named Yernim Weltom ingenuity in hiding the castle's artifacts that he appointed him Caretaker of Artifacts. His servant was allowed two staff to accompany the young servant and commanded Yernim to come up with a better plain to protect the families heirlooms while the guard was away.

With Prince Liam's approval, Yernim Weltom instructed the nobles to send five trusted servants to him for training. Thus the continent wide training of the Caretakers began.

All information gathered is from https://wow.gamepedia.com