The Mermaid dates waaaay back. I beleive there was in fire in some areas of the building so it was RE-built in 1420. A must visit if you get to Rye, Sussex, England. The Mermaid is still a fully functioning, pub, restaurant and hotel.
The Mermaid Inn, Sussex it was established in the 12th century and has a long, turbulent history. The current building dates from 1420 and has 16th-century additions in the Tudor style, but cellars built in 1156 survive.[