Surabhi

 The Matsya Purana notes that Surabhi – the mother of all cows and the "cow of plenty" – was the consort of Brahma and their union produced the eleven Rudras. Here they are named

1. Nirṛti
2. Śambhu
3. Aparājita
4. Mṛgavyādha
5. Kapardin
6. Dahana
7. Khara
8. Manas
9. Ahirbudhnya
10. Kapālin
11. Piṅgala
12. Senāni

The Harivamsa, an appendix of the Mahabharata, makes Kashyapa and Surabhi – here, portrayed as his wife – the parents of the Rudras.