Johor Sultanate
The Old Pahang Sultanate centred in modern-day Pekan was established in the 15th century. At the height of its influence, the Sultanate was an important power in Southeast Asian history and controlled the entire Pahang basin, bordering to the north, the Pattani Sultanate, and adjoins to that of Johor Sultanate to the south. To the west, it also extends jurisdiction over part of modern-day Selangor and Negeri Sembilan.