Mud

• Mud Island: now called Ballybough , it is an inner city district of north east Dublin city, Ireland. Prior to its urbanization in the late nineteenth century, Ballybough was known as Mud Island, owing to its proximity to the mud flats that now form Fairview and environs.
• king of Mud Island: '"the dubious title bestowed on the leader of a seventeenth-century band of highwaymen, smugglers, thieves and outlaws of every kind." (Hopkins, Rare Old Dublin: Heroes, Hawkers & Hoors )