| Prince Hans-Adam II, and his wife Princess Marie of Liechtenstein, Hereditary Prince Alois and his wife Hereditary Princess Sophie of Liechtenstein attend the National Day 2017 celebrations in Vaduz, Liechtenstein. The 15 August is National Day in Liechtenstein. It has been celebrated since 1940 and is closely connected to the birthday of Prince Franz-Josef II on 16 August. |