Sikhs who accompanied Guru Tegh Bahadur Sahib and attained Martyrdom with the Guru (Nov. 1675).
Bhai Dyala Ji (He was from Jatt or Rajput Family), brother of Saheed Bhai Mani Singh ji. Bhai Mani Singh ji wrote the Shri Guru Granth Sahib dictated from the holy mouth of Shri Guru Gobind Singh. Bhai Mani Singh attained saheedi at Lahore in 1738 (one month after diwali).
Bhai Mati Das was from a Brahmin family, he became Sikh during the era of Guru HarGobind Sahib Ji. His brother Sati Das also attained martyrdom along with him, Bhai Dyala Ji and Guru Sahib.
Bhai Sati Das Ji