We recieved the question what is means : abdication : Abdication is depositing a typically regal function ( kingship or empire) in life, as opposed to termination by death. Previously, this was highly unusual (a famous example is that of Charles V in favor of his son Philip II), nowadays it is more common. In the United Kingdom, Monaco and the Scandinavian countries abdication  still unusual. We made a list from 1917 until now and it shows it’s no so unusual as we think..( list below te article)

The first King of the Netherlands, William I, abdicated the throne in 1840. He was disappointed over the loss of Belgium (which declared independence in 1830, but was not recognized until 1839), didn’t like a new, somewhat less conservative constitution, and wanted to marry a Catholic, which would have been scandalous for a Dutch monarch at the time. His son and grandson, William II and Wiliam III, reigned until their deaths.
Queen Wilhelmina reigned from 1890 to 1948. During the German occupation of the Netherlands (1940–1945), she was in London with the government and was far more influential than she would have been in peacetime. After the war, she wasn’t happy to get back in her role as a toothless constitutional monarch, without big changes from the prewar situation.
After that it became tradition that the monarch abdicates rather than reigning until death; Juliana did it in 1980, Beatrix in 2013


List of Abdication from 1917 until now :

⦁ Nicholas II, Emperor of Russia March 15, 1917 (monarchy abolished)
⦁ Ferdinand I, Tsar of the Bulgarians October 3, 1918 (forced into exile)
⦁ William II, German Emperor and King of Prussia November 9, 1918 (monarchies abolished)
⦁ Marie-Adélaïde, Grand Duchess of Luxembourg January 14, 1919
⦁ Constantine I, King of the Hellenes September 27, 1922
⦁ Prajadhipok, King of Siam March 2, 1935
⦁ Edward VIII, King of the United Kingdom and the British Dominions, Emperor of India December 11, 1936
⦁ Carol II, King of Romania September 6, 1940 (forced into exile)
⦁ Rezā Shāh, of Iran September 16, 1941 (forced into exile)
⦁ Bảo Đại, Emperor of Vietnam August 25, 1945 (Feudal Dynasty dissolved)
⦁ Peter II, King of Yugoslavia November 29, 1945 (fled in 1941, forced into exile by 1946)
⦁ Victor Emmanuel III, King of Italy May 9, 1946 (abdicated in favour of his son, Umberto, later forced into exile when the monarchy was declared abolished)
⦁ Charles Vyner Brooke, White Rajah of Sarawak July 1, 1946 (monarchy abolished, Sarawak ceded as British Crown Colony)
⦁ Michael, King of Romania December 30, 1947 (monarchy abolished)
⦁ Wilhelmina, Queen of the Netherlands September 4, 1948
⦁ Leopold III, King of the Belgians July 16, 1951
⦁ Farouk, King of Egypt July 26, 1952 (forced into exile)
⦁ Talal, King of Jordan August 11, 1952 (forced into exile)
⦁ Sheikh Ali bin Abdullah Al Thani, King of Qatar October 24, 1960
⦁ Saud, King of Saudi Arabia November 2, 1964 (forced into exile)
⦁ Charlotte, Grand Duchess of Luxembourg November 12, 1964
⦁ Omar Ali Saifuddin, Sultan of Brunei October 4, 1967
⦁ Juliana, Queen of the Netherlands April 30, 1980
⦁ Letsie III, King of Lesotho [8] January 25, 1995 (reinstated as King February 7, 1996, following his father’s death)
⦁ Jean, Grand Duke of Luxembourg October 7, 2000
⦁ Norodom Sihanouk, King of Cambodia October 7, 2004
⦁ Saad Al-Abdullah Al-Salim Al-Sabah, Emir of Kuwait January 23, 2006
⦁ Jigme Singye Wangchuck, King of Bhutan December 15, 2006
⦁ Gyanendra, King of Nepal May 28, 2008 (monarchy abolished)
⦁ Pope Benedict XVI February 28, 2013
⦁ Beatrix, Queen of the Netherlands April 30, 2013
⦁ Hamad bin Khalifa Al Thani, Emir of Qatar June 25, 2013
⦁ Albert II, King of the Belgians July 21, 2013
⦁ Juan Carlos I, King of Spain June 19, 2014