Jewish convert laid down his life for the cause of Baha'u'llah.

In Kirmánsháh, the martyr Mírzá Yá‘qub-i-Muttaḥidih, the ardent twenty-five year old Jewish convert to the Faith, was the last to lay down his life during ‘Abdu’l‑Bahá’s ministry; and his mother, according to his own instructions, celebrated his martyrdom in Hamadán with exemplary fortitude. In every instance the conduct of the believers testified to the indomitable spirit and unyielding tenacity that continued to distinguish the lives and services of the Persian followers of the Faith of Bahá’u’lláh.

https://www.bahai.org/library/authoritative-texts/shoghi-effendi/god-passes-by/22#572746759