King of Prussia from 1840. He upheld the principle of the divine right of kings, but was forced to grant a constitution in 1850 after the Prussian revolution of 1848. He suffered two strokes in 1857 and became mentally debilitated. His brother William (later emperor) took over his duties.
The temple of Angkor Wat had five towers but often only three are depicted. Red and blue recall the earlier flags of Cambodia. Effective date: 20 June 1993.