Dadhichi/Dadhyancha

A sage who voluntarily gave his life so that the Gods could defeat the Demons. As a result of asceticism, his bones had become so hard and powerful that Indra’s Vajra, thunderbolt, could be made from them.

Dadhichi is also known as Dadhyancha. Depending on the scripture his wife’s name is Lopamudra or Suvarcha. The son’s name is Pippalada.

Read about Dadhichi here
http://hindumythologyforgennext.blogspot.com/2011/12/indra-and-vritra-part-2.html