First temple

 Mithrananthapuram Trimurti Temple   is believed  as first temple in trivandrum. Their is no idea that who built this and when.It is a temple complex in Thiruvananthapuram. 

According to Syanandura Purana, the temple was constructed in its present form in the year 1168 A.D. Historical records show that the temple was renovated in the year 1196 A.D. and some land was submitted to the deities in 1344 AD. The temple was again renovated in the year 1748 by Maharaja Marthanda Varma. Earlier, the temple was under the control of Ettara Yogam. Now temple administration is vested with the Travancore Devaswom Board. From the very beginning, the administration of this temple was jointly supervised by the Travancore kings.

Attukal   is Built in: 2nd century A.D

Built By: Tamil Poet Illango  & owned by Attukal Bhagavathy Temple Trust. family viz. Mulluveettil family.

Foundation of the present gopuram was laid in 1566. The temple has a 100-foot (30 m), 7-tier gopuram made in the Pandyan style.The Sree Padmanabhaswamy temple was built in the 16th Century by the kings who ruled over the then kingdom of Travancore