4 occurrences in 4 dictionaries
Reference: Mattenai
Hastings
1. 2. Two of those who had married foreign wives, Ezr 10:33 (called in 1Es 9:33 Maltanneus), 1Es 9:37 (combined in 1Es 9:34 with the preceding Mattaniah into Mamnitanemus). 3. Representative of the priestly house of Joiarib in the days of Joiakim (Ne 12:19).