AstaShivaSambhuChandi

In Puri The Holy Trinity ( Lord Jaganath, Balavadra, Subhadra ) is guarded by eight Shiva Shrines, i.e.

1. Markandeswar, 
2. Kapalamochana, 
3. Lokanath, 
4. Yameswar, 
5. Nilakantheswar or Yajneswar,
6. Bilweswara, 
7. Isaneswara and 
8. Pataleswara stationed in eight directions. 

http://puripolice.nic.in/?q=node/111

Asta-Sambhu In the district of Bargarh a large of Siva Temple were built during the Chauhan rule of undivided Sambalpur. The most important among them were those of the Asta-Sambhu or 8 Siva Temples such as

1. Bimaleswar Temple at Huma (Sambalpur)
2. Kedarnath Temple at Ambabhona (Bargarh)
3. Baidyanath Temple at Deogaon (Bargarh)
4. Balunkeswar Temple at Gaisama (Bargarh)
5. Mandhata Baba Temple at Maneswar (Sambalpur)
6. Swapneswar Temple at Sorna (Bargarh)
7. Visweswar Temple at Soranda (Bargarh)
8. Nilakantheswar Temple at Nilji (Bargarh)

https://en.wikipedia.org/wiki/Sambalpur
https://en.wikipedia.org/wiki/Bargarh

Similarly eight mother goddesses i.e. 

1. Batamangala, 
2. Alamchandi, 
3. Ardhashani, 
4. Merchika, 
5. Narayaini, 
6. Shyama Kali, 
7. Dakshina Kali and 
8. Ramachandi 

also guard the Holy Trinity.

Skanda Purana
http://www.harekrsna.com/sun/features/01-09/features1252.htm