2 Kings 21:1

Manasseh was twelve years old when he became king, and he reigned in Jerusalem fifty-five years. His mother’s name was Hephzibah.
BSB · Berean Standard Bible
Manasseh was twelve years old when he began to reign, and reigned fifty and five years in Jerusalem. And his mother’s name was Hephzi-bah.
KJV · King James Version
Manasseh was twelve years old when he began to reign, and he reigned fifty-five years in Jerusalem. His mother’s name was Hephzibah.
WEB · World English Bible
Manasseh was twelve years old when he began to reign; and he reigned five and fifty years in Jerusalem: and his mother’s name was Hephzibah.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

was twelve
A.M. 3306-3361. B.C. 698-643.
2 Kings 20:21; 1 Chronicles 3:13; 2 Chronicles 32:33; 2 Chronicles 33:1–9; Matthew 1:10
Manasses
Hephzi-bah.
Proverbs 5:19; Isaiah 62:4