MNQ meaning in Airport Code ?

Monto was the nickname for the one-time red light district in Dublin, Ireland. Monto was roughly the area bounded by Talbot Street, Amiens Street, Gardiner Street and Seán McDermott Street (formerly Gloucester Street) in what would now be called Summerhill. The name is derived from Montgomery Street (now called Foley Street), which runs parallel to the lower end of Talbot Street towards what is now Connolly Station. Montgomery Street is believed to have been named after Elizabeth Montgomery, who was married to Luke Gardiner, 1st Viscount Mountjoy.