Archaeological relics found in Malappuram also include the remnants of palaces of the eastern branch of the Zamorin reign. Malappuram was the military headquarters of the Zamorin in the Eranad region. The Zamorins held sway over Malappuram and their chieftain Para Nambi, ruled the area in early days with headquarters at Downhill (Kottappadi), Malappuram. Details of the rulers of erstwhile Malappuram, who were the ancestors of later Zamorins, figure in the Jewish copper plates of Bhaskara Ravi Varman (1000 AD) and in the Kottayam copper plates of Veera Raghava Chakravarthy (1225 AD). The later history of the city is interwoven with the history of Zamorin's rule.