Title: Prince Alexander of the Netherlands
Content:  Prince Alexander of the Netherlands, Prince of Orange-Nassau (William Alexander Frederick Constantine Nicholas Michael, Willem Alexander Frederik Constantijn Nicolaas Michiel, Prins der Nederlanden, Prins van Oranje-Nassau; 2 August 1818 &ndash; 20 February 1848) was born at Soestdijk Palace, the second son to King William II of The Netherlands and Queen Anna Paulovna, daughter of Tsar Paul I of Russia. He was nicknamed Sasha within his family.
Title: Alexander, Prince of Orange
Content:  Alexander, Prince of Orange (Willem Alexander Karel Hendrik Frederik; 25 August 1851 – 21 June 1884), was heir apparent to his father King William III of the Netherlands from 11 June 1879 until his death. For a span of 116 years, from the birth of Alexander (1851) until the birth of the present king Willem-Alexander (1967), no male heirs were born into the Dutch Royal House.
Title: Alexander, Prince of Orange
Content:  Prince Alexander of the Netherlands was born in The Hague on 25 August 1851. He was the third child of King William III and Queen Sophie. His second brother, Prince Maurice had died the previous year. Unlike his brother William, the heir-apparent, he was disciplined, intellectual and well-read. His mother, Queen Sophie died in 1877. After Prince William's death two years later on 11 June 1879, he became heir apparent to the Dutch throne and as such the Prince of Orange. Alexander held the position of heir apparent until his own death, at age 32, on 21 June 1884 in The Hague from typhus. Although he never married, negotiations were held 
Title: Alexander, Prince of Orange
Content:  him to marry, firstly Princess Thyra of Denmark, and supposedly secondly the Infanta Marie Anne of Portugal. He was buried in the new royal burial vault in the Nieuwe Kerk in Delft on 17 July 1884. After his death, his half-sister, the future Queen Wilhelmina, became heir presumptive to the Dutch throne. Alexander's death meant that on the death of William III the Grand Duchy of Luxembourg came into the hands of Duke Adolphus from the Walram line of the House of Nassau, as under the terms of the house-treaty a princess could not succeed to that title. Prince Alexander was Grand Master of the Grand Orient of the Netherlands.
Title: Prince Alexander of the Netherlands
Content:  Prince Alexander was born on Sunday, 2 August 1818 at a quarter past ten in the morning. His birth was announced the next day in the Nederlandsche Staatscourant. To commemorate the birth of his second grandson William I of the Netherlands gave his daughter-in-law Anna Pavlovna the Czar Peter House in Zaandam, which had been inhabited by her ancestor Peter I of Russia during his stay in the Dutch Republic. Prince Alexander was christened on the forty-sixth birthday of his grandfather, 24 August 1818, by the Reverend Krieger in The Hague. The young Prince's paternal great-grandmother Wilhelmina of Prussia was present for the occasion. Alexander received 
Title: Prince Constantijn of the Netherlands
Content:  Prince Constantijn of the Netherlands (Constantijn Christof Frederik Aschwin; born 11 October 1969) is the third and youngest son of the former Dutch queen, Beatrix, and her husband, Claus von Amsberg, and is the younger brother of the reigning Dutch king, Willem-Alexander. He is a member of the Dutch Royal House and currently fourth in the line of succession to the Dutch throne.
Title: Prince Alexander of Yugoslavia (born 1982)
Content:  Alexander is the third son of the last crown prince of Yugoslavia, Alexander, and his first wife, Princess Maria da Gloria of Orléans-Braganza. He is the fraternal twin of Prince Philip of Yugoslavia. His godparents are Queen Sofía of Spain, King Constantine II of Greece (first cousins of his father), and Princess Anne, Duchess of Calabria (first cousin of his mother). Alexander lived in Virginia until 1984. He was educated in London and Canterbury with his twin brother. In June 2000, he completed sixth form at The King's School, Canterbury. He was awarded a BA degree in Communications and Media from the University of San Francisco in 2004. Alexander was at a graduate school at an American university completing a MFA degree in Advertising (Art Direction). Currently he is working and living in California, United States. On July 17, 2001, the former royal family took up residence in the Royal Palace in Belgrade. As a 4th-great-grandson of Queen Victoria, Alexander is in the line of succession to the British throne.
Title: Willem-Alexander of the Netherlands
Content:  Willem-Alexander Claus George Ferdinand was born on 27 April 1967 at the Utrecht University Hospital (now known as the University Medical Center Utrecht) in Utrecht, Netherlands. He is the first child of Princess Beatrix and Prince Claus, and the first grandchild of Queen Juliana and Prince Bernhard. He was the first male Dutch royal baby since the birth of Prince Alexander in 1851, and the first immediate male heir since Alexander's death in 1884. From birth, Willem-Alexander has held the titles Prince of the Netherlands (Prins der Nederlanden), Prince of Orange-Nassau (Dutch: Prins van Oranje-Nassau), and Jonkheer of Amsberg (Dutch: Jonkheer van Amsberg). He was baptised as a member of the Dutch Reformed Church on 2 September 1967 in Saint Jacob's Church in The Hague. His godparents 
Title: Willem-Alexander of the Netherlands
Content:  his maternal grandfather Prince Bernhard of Lippe-Biesterfeld, his paternal grandmother Gösta Freiin von dem Bussche-Haddenhausen, Prince Ferdinand von Bismarck, former Prime Minister Jelle Zijlstra, Jonkvrouw Renée Röell, and Queen Margrethe II of Denmark. He had two younger brothers: Prince Friso (1968–2013) and Prince Constantijn (born in 1969). He lived with his family at the castle Drakensteyn in the hamlet Lage Vuursche near Baarn from his birth until 1981, when they moved to the larger palace Huis ten Bosch in The Hague. His mother, Beatrix, became Queen of the Netherlands in 1980, after his grandmother Juliana abdicated. He then received the title of Prince of Orange as heir apparent to the throne of the Kingdom of the Netherlands. Willem-Alexander attended local state primary school Nieuwe Baarnse Elementary 
Title: Alexander, Prince of Schaumburg-Lippe
Content:  He was born in Düsseldorf, the second son of Philipp-Ernst, Prince of Schaumburg-Lippe (1928-2003) and his wife Baroness Eva-Benita von Tiele-Winckler (1927-2013). At the time of the death of his grandfather, Prince Wolrad in 1962, Alexander was unlikely to succeed to the headship of the princely house. However following the death of his older brother Hereditary Prince Georg-Wilhelm in a motorcycle accident on 31 July 1983, Alexander became the heir apparent and new Hereditary Prince. He succeeded as head of the princely house following his father's death on 28 August 2003. He studied law at Göttingen and moved into upon his succession, managing the properties of the House. He is also known as a devoted jazz pianist, and has occasionally given concerts together with his friend Karl Friedrich, Prince of Hohenzollern, a saxophonist.

Question: Who is the father of Prince Alexander of the Netherlands?
Answer: William II of the Netherlands.
King William II of the Netherlands.
Prince William of Orange.
Prince William of Orange-Nassau.
William II.