William II of the Netherlands in the context of "Grand Duke of Luxembourg"

Place Guillaume II (French pronunciation: [plas ɡijom dø]) is a town square in Luxembourg City, in southern Luxembourg. The square is in the heart of Luxembourg's historic Ville Haute quarter. It is colloquially known as Knuedler, from the Luxembourgish language's word for "knot", referring to the knot in the belt worn by Franciscan friars.

The western half of the square is dominated by Luxembourg City Hall in the southwest, whilst the equestrian statue to former Grand Duke William II, after whom the square is named, is the prominent feature of the eastern half. Much of the square is ringed with trees, narrowing the open area (particularly around the statue).

William III (Dutch: Willem III, French: Guillaume III; 19 February 1817 – 23 November 1890) was King of the Netherlands and Grand Duke of Luxembourg from 1849 until his death in 1890, and was also the Duke of Limburg from 1849 until the abolition of the duchy in 1866. Having reigned for 41 years, he is the second-longest reigning Dutch monarch, only surpassed by his daughter, Wilhelmina.

William was the son of King William II and Anna Pavlovna of Russia. On the abdication of his grandfather William I in 1840, he became the Prince of Orange. On the death of his father in 1849, he succeeded as king of the Netherlands.

Anna Pavlovna of Russia (Russian: Анна Павловна [ˈanːə ˈpavləvnə]; Dutch: Anna Paulowna [ˈɑnaː pɑˈloːnaː] ; 18 January [O.S. 7 January] 1795 – 1 March 1865) was Queen of the Netherlands by marriage to King William II of the Netherlands. She was a Russian patriot who upheld a strict royal etiquette in the Netherlands, where she never felt at home, and identified more as an imperial Russian grand duchess than a Dutch queen. She had no political influence, but was active within charity.She is the paternal grandmother of Wilhelmina of the Netherlands, via her eldest son, William III.

Princess Charlotte of Wales (Charlotte Augusta; 7 January 1796 – 6 November 1817) was the only child of George, Prince of Wales (later George IV), and Caroline of Brunswick. She was expected to ascend the British throne after the deaths of her grandfather, George III, and her father, but died in childbirth at the age of 21, predeceasing them both.

Charlotte's parents disliked each other from before their arranged marriage and soon separated. The Prince of Wales left most of Charlotte's care to governesses and servants, only allowing her limited contact with her mother, who eventually left the country. As Charlotte grew to adulthood, her father pressured her to marry William, Hereditary Prince of Orange (later King of the Netherlands). After initially accepting him, Charlotte soon broke off the intended match. This resulted in an extended contest of wills between her and her father, who finally permitted her to marry Leopold of Saxe-Coburg-Saalfeld (later King of the Belgians). After a year-and-a-half of happy marriage, Charlotte died after giving birth to a stillborn son.