Uzziah was the son of Amaziah and Jecoliah of Jerusalem. According to Ussher, he was born in 826 BCE when his father was thirty-seven years old. Thiele's original dissertation left the question of Uzziah's birth open, leading to a seemingly impossible situation (see below). Leslie McFall, in an attempt to repair Thiele's oversight, suggests that Uzziah became viceroy of the Southern Kingdom at the age of sixteen--and must therefore have been born in 809 BCE, when (in the Thiele system) his father was twelve years old. This is possible, but implies that Uzziah's grandfather Joash would have found a wife for his son while the son was very young. This, however, is the least of the difficulties with the Thiele system.