Numbers 26:59-61

Young's Literal Translation

⁵⁹ and the name of Amram's wife is Jochebed, daughter of Levi, whom [one] hath born to Levi in Egypt; and she beareth to Amram Aaron, and Moses, and Miriam their sister.

⁶⁰ And born to Aaron Nadab and Abihu, Eleazar and Ithamar;

⁶¹ and Nadab dieth -- Abihu also -- in their bringing near strange fire before Jehovah.