The Valyrian Freehold was a powerful and advanced civilization in the fictional world of A Song of Ice and Fire, created by George R.R. Martin. It was known for its exceptional knowledge of magic, dragon-riding, and advanced metallurgy, which allowed the Valyrians to dominate much of the known world before its fall. The Freehold was centered in the region of Valyria, where the Valyrians built a vast empire through conquest and trade. However, a catastrophic event known as the Doom of Valyria led to its destruction, scattering the surviving Valyrians and marking the end of their reign.