There is no information about Azariah, except he is the son of Hilkiah. He is not mentioned in any specific story in the Bible but is listed in genealogies (Ezra 7:1; 1 Chron 6:13). It is dated to the period before the Babylonian destruction of Jerusalem around 605 BCE. Azariah is also stated to be the grandfather of Ezra. It is also noted that this particular clay seal meets two of the three rules formulated in Avigad's conditions.
The inscription on the seal (IAA 1984-165 (Azariah son of Hilkiah)) reads:
(Belonging) to 'Azaryahu
son of Hilqiyahu