Thousands of Spanish protesters marched through the streets of the capital, Madrid, to demand the abdication of the monarchy and the return to a democratically-elected government.
Sunday's protest marked the anniversary of the country's last democratically-elected republic, which was overthrown by an army uprising, followed by a civil war and nearly four decades of dictatorship under General Francisco Franco.
King Jaun Carlos took over as head of state following Franco's death in 1975 and is credited with steering the country towards a constitutional democracy.
The royal family has come under intense criticism following a series of recent scandals, including last year's controversial elephant hunting trip by the 75-year-old king, and a corruption investigation involving his daughter, Princess Christina.
Sunday's protest marked the anniversary of the country's last democratically-elected republic, which was overthrown by an army uprising, followed by a civil war and nearly four decades of dictatorship under General Francisco Franco.
King Jaun Carlos took over as head of state following Franco's death in 1975 and is credited with steering the country towards a constitutional democracy.
The royal family has come under intense criticism following a series of recent scandals, including last year's controversial elephant hunting trip by the 75-year-old king, and a corruption investigation involving his daughter, Princess Christina.