Arad County was an administrative unit in the Kingdom of Hungary, the Eastern Hungarian Kingdom and the Principality of Transylvania. The county was established along the Maros (Mureș) River in the 11th or the 12th century, but its first head, or ispán, was only mentioned in 1214. Its territory is now part of Romania, except a small area which is part of Hungary. The capital of the county was Arad.
- Country
- Kingdom of Hungary
