Maesĭa Silva, or Messĭa Silva * A forest in the territory of the Veii, on the borders of Etruria, now Bosco di Baccano, Liv. 1, 33, 9; Plin. 8, 58, 83, § 225.
Charlton T. Lewis, Charles Short, A Latin Dictionary
PIR
Feminine Personal name Confirmed occurences in the Roman Empire:
Maesia Domitilla (Fem), ref: PIR M 0083 | PIR ID8708
Maesia Fabia Titiana (Fem, senator), ref: PIR M 0084 | PIR ID8709