Thanjavur remained under the supremacy of the Vijayanagar Kings for a long period. The Nayak dynasty was established during this period and Sevappa, the founder of Nayak Kingdom of Thanjavur made his appearance on the scene (1532-1560). In 1560, Sevappa Nayak made over kingdom to his son Achuyutappa Nayak. His rules unlike that of his father was not one of unbroken peace. Shortly after getting old he abdicated the crown in favour of his son Ragunatha (1600-1630) During his reign, a Danish settlement was established at Tranquebar (1620). The Nayaks of Thanjavur were loyal to Vijayanagar after the battle of Talikotta and helped Vijayanagar in repulsing the attacks of the Nayak of Madurai and their temporary ally Golkonda, but the beginning of the 17th Century was the end of the Vijayanagar empire.