Hans Michelsen
Hans Michelsen( 1789 – 20 June 1859) was a Norwegian sculptor.
He was born in Melhus; the son of farmer Michel Sørensen Hægstad and Abel Jonsdatter.
He studied sculpture with Erik Gustaf Göthe in Stockholm from 1815, and from 1820 to 1826 with Bertel Thorvaldsen in Rome.
Among his works are busts of Prime Minister Peder Anker, Charles XIII of Sweden, Charles XIV John of Sweden, Crown Prince Oscar and Thomas Angell.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Sophia Albertina, Abbess of Quedlinburg
Princess Sophia Albertina of Sweden(" Sophia Maria Lovisa Fredrika Albertina"; 8 October 1753 – 17 March 1829) was the last Princess- Abbess of Quedlinburg Abbey, and as such reigned as vassal monarch of the Holy Roman Empire.
Sophia Albertina was the daughter of King Adolf Frederick of Sweden and Louisa Ulrika of Prussia.
She was thus a princess of Sweden, a princess of Holstein- Gottorp and a sister to Gustav III of Sweden.
She was a member of the Accademia di San Luca.
When her brother Charles XIII of Sweden and the rest of the royal family also became Norwegian royalty in 1814, that did not include Sophia Albertina who then officially was called" Royal Princess"( of no country).
She was given her two names as namesake of her two grandmothers: the Prussian Queen Sophia Dorothea of Hanover and Margravine Albertina Frederica of Baden- Durlach.
Brita Horn
Brita Margaretha Horn( 1745 – 13 March 1791), was a Swedish countess and courtier.
She is known for being the love interest of Charles XIII of Sweden from 1765 to 1771, during which time Charles' wish to marry her was given political significance and used by the Caps and Hats parties during the Age of Liberty.
She is also known for her correspondence with her spouse from 1775 to 1791, which has been partially published.
Françoise-Éléonore Villain
Françoise- Éléonore Villain( 1761 in Liège, Prince- Bishopric of Liège – Stockholm 26 March 1783) was a Liégeois actress known under her stage name Mlle Baron or Mademoiselle Baron the Younger.
She was engaged in Sweden in The French Theater of Gustav III from 1781 until 1783, where she was viewed as one of its most prominent members, and she is also known in history as the lover of Charles XIII of Sweden.
Charlotte Eckerman
Beata Charlotta" Charlotte" Eckerman( 1759 – 16 January 1790 in Stockholm), was a Swedish opera singer and actress.
She was also a very well known courtesan during the Gustavian era, and the official royal mistress of Charles XIII of Sweden from 1779 to 1781.
Charles XIII of Sweden
Charles XIII, or Carl XIII, (7 October 1748 – 5 February 1818), was King of Sweden (as "Charles XIII") from 1809 and King of Norway (proclaimed as Charles XIII but in recent times accurately referred to as Charles II) from 1814 to his death.
He was the second son of King Adolf Frederick of Sweden and Louisa Ulrika of Prussia, sister of Frederick the Great.
Though known as King Charles XIII in Sweden, he was actually the seventh Swedish king by that name, as Charles IX (reigned 1604–1611)
had adopted his numeral after studying a fictitious history of Sweden.
Adolf Frederick, King of Sweden
Adolf Frederick or Adolph Frederick (14 May 171012 February 1771) was King of Sweden from 1751 until his death.
He was the son of Christian August of Holstein-Gottorp, Prince of Eutin, and Albertina Frederica of Baden-Durlach.
The first king from the House of Holstein-Gottorp, Adolf Frederick was a weak monarch, instated as first in line of the throne following the parliamentary government's failure to reconquer the Baltic provinces in 1741–43.
Aside from a few attempts, supported by pro-absolutist factions among the nobility, to reclaim the absolute monarchy held by previous monarchs, he remained a mere constitutional figurehead until his death.
His reign saw an extended period of internal peace, although the finances stagnated following failed mercantilist doctrines pursued by the Hat administration.
The Hat administration ended only in the 1765–66 parliament, where the Cap opposition overtook the government and enacted reforms towards greater economic liberalism as well as a Freedom of Press Act almost unique at the time for its curtailing of all censorship, retaining punitive measures only for libeling the monarch or the Church of Sweden.
Charlotte Slottsberg
Charlotte( Gustava Charlotta) Slottsberg( 29 May 1760 in Stockholm – 29 May 1800) was a Swedish ballerina.
She was one of the first native members of the Royal Swedish Ballet.
She was also known as a courtesan and as the controversial mistress of the future Charles XIII of Sweden.
She was the first native star of the Royal Swedish Ballet.
Mariana Koskull
Henrietta Mariana" Marianne" Charlotta Koskull( 19 February 1785, in Växjö – 30 March 1841, in Stockholm) was a Swedish noble and lady- in- waiting, known as the royal mistress of King Charles XIII of Sweden and King Charles XIV John of Sweden.

Question: Who is Charles Xiii Of Sweden's paternal grandfather?
Answer: Christian August of Holstein-Gottorp, Prince of Eutin