Both the Thiruvithamkur and the Kolathiri Dynasties are descendants of the ancient Ay Dynasty .
A branch of the Ay family , which had been controlling the temple of Sri Padmanabha , later merged with Keezhperoor illam , the ruling house of Venad ( c. 1100 CE ) .
Both the Thiruvithamkur and the Kolathiri Dynasties are descendants of the ancient Ay   .
A branch of the Ay family , which had been controlling the temple of Sri Padmanabha , later merged with Keezhperoor illam , the ruling house of Venad ( c. 1100 CE ) .