Manasseh was twelve years old - Manasseh, therefore, was not born at the time of Hezekiah’s dangerous illness; and it is probable that Hezek…

Manasseh. — This king was a tributary to Esarhaddon and Assurbanipal successively. (See Schrader, Keilinschr., pp. 354-35…

Manasseh was twelve years old when he began to reign
So that he was born three years after Hezekiah's recovery from …