Adhishtanam of Shri Thotakacharya in Kamakshi temple Kanchipuram

 One of the other prominent Sishyas of Adi Shankara was Shri Giri 

Sri Sankara, with his three principle disciples, namely, Padmapadar, Sureshwarar (Mandana Mishra) and Hastaamalaka, went from place to place, and preached Advaita. Sri Sankara gave intense training to his disciples.  ShriThotakacharya(Giri)  One of the other disciples, Giri, while listening to the discourses, would not ask any doubts, would not open his mouth, and would be silent all the time. Some of the other disciples thought that this Giri was a dumb idiot and did not know anything. One day, all the disciples were ready to listen to Sri Sankara's discourses. Sri Sankara waited for Giri to arrive. Ultimately, Giri turned up but instead of keeping silent on that day, burst forth into eight slokas which had never been heard by the disciples earlier. These were the creation of Giri. On hearing this, all the disciples felt ashamed and praised Giri. These slokas are called "Thotaka ashtakam". Giri was named as Thotakar by Sri Sankara.(from Kamakoti.org) He was made the first Jagadguru (head) of the Jyotirmaṭha Pīthaṃ, the original northern maṭha founded by Ādi Śaṅkara in Uttrakhand. He founded a maṭha by name Vadakke modam in Thrissur, Kerala.(from wikipedia) On learning that his Guru took samadhi at Kamakshi Temple at Kanchipuram, he took decided to return back to Kanchipuram and took samadhi near to his Guru's samadhi.

Thotakacharya's adhistanam can be seen within the Kamakshi temple near to the theertham next to the Durga sannidhi below the Neem tree.