Gorm the Old, also known as Gorm the Sleepy, was a prominent Viking king of Denmark who reigned in the early 10th century. He is considered the founder of the Jelling dynasty, which played a crucial role in unifying Denmark. Gorm's rule marked a significant period in Danish history, characterized by consolidation of power and territorial expansion. His legacy is immortalized through the Jelling stones, two monumental runestones erected by his son, Harald Bluetooth.

The larger of these stones bears an inscription commemorating Gorm and his wife, Queen Thyra, often referred to as "Denmark's Adornment." These stones are now recognized as one of Denmark’s most important historical landmarks. Gorm's reign laid the groundwork for Denmark's transition from a collection of fragmented territories into a more centralized and cohesive kingdom. His efforts in unification and consolidation paved the way for future advancements under his successors, solidifying his place in Danish history.