Rudras

[3] The Ramayana tells they are eleven of the 33 children of the sage Kashyapa and his wife Aditi, along with the 12 Adityas, 8 Vasus and 2 Ashvins, constituting the Thirty-three gods.

Here they are named[5] The Harivamsa, an appendix of the Mahabharata, makes Kashyapa and Surabhi – here, portrayed as his wife – the parents of the Rudras.

[2][6] In another instance in the Mahabharata, it is Dharma (possibly identified with Yama) who is the father of the Rudras and the Maruts.

[4][2] Other Puranas call them Aja, Ekapada (Ekapat), Ahirbudhnya, Tvasta, Rudra, Hara, Sambhu, Tryambaka, Aparajita, Isana and Tribhuvana.

[1][2] The eleven groups of hundred are named:[1] The Bhagavata Purana Canto 3 Chapter 3 mentions that Rudra is born from the anger of Lord Brahma.

[2] In the Brihadaranyaka Upanishad, the eleven Rudras are represented by ten vital energies (rudra-prana) in the body and the eleventh one being the Ātman (the soul).

[1] The Bhagavata Purana prescribes the worship of the Rudras to gain virile power.

[9] However, other scholars disregard this theory and consider that originally Rudras and Maruts were identical.

Drona performed many years of severe penances to please Lord Shiva in order to obtain a son who possessed the same valiance as the latter.

Just before Mahabharata war, Bhishma himself declared that it would be virtually impossible for anyone to kill or defeat Ashwatthama in battle as he was the part incarnate of Rudra.

The dishonoured death of Drona, Karna and Duryodhana left Aswathama infuriated, and this event led directly and in an unwary-like manner, to the annihilation of most of the Pandava lineage by the hands of Ashwatthama himself.