Principality of Sealand Flag

Facts about the Flag of Principality of Sealand Flag

1. Sealand is a Second World War sea fort in the North Sea whose occupants declared it a principality in 1967. No state recognises it.
2. The flag is included here as a curiosity of vexillology rather than as the flag of a sovereign entity.
3. The flag of the Principality of Sealand, a micronation on a former sea fort off the English coast, declared in 1967.
4. The flag belongs to the Principality of Sealand. It is used in a former anti-aircraft platform in the North Sea off Suffolk.
5. It was founded on 2 September 1967 by Paddy Roy Bates.
6. The flag was adopted in 1967.
7. The design is 59 years old as of 2026.
8. Construction: Diagonally divided field of black, white and red.
9. It is normally drawn to a ratio of 2:3, which makes it rectangular.
10. The flag uses 3 colours: black, white and red.
11. The black stands for the upper section.
12. The white stands for the diagonal band.
13. The red stands for the lower section.
14. Diagonal division: A simple, distinctive design for one of the world’s best-known micronations.
15. It is a micronation recognised by no state, though a 1968 British court ruling found it lay outside territorial waters at the time.
16. It is filed here under Signal, Sport and Symbolic Flags, one of the categories of flag that belong to no country.