Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Purnima (Hindi actress)
Purnima Das Verma( born Meherbhano Mohammad Ali) was an Indian film actress who worked predominantly in Hindi language films.
She is the grandmother of actor Emraan Hashmi.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
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.
Carl Löwenhielm
Count Carl Löwenhielm (3 November 1772 – 9 June 1861) was a Swedish military officer, diplomat, and politician.
He was an illegitimate son of King Charles XIII of Sweden and Augusta von Fersen (married to the Chancellor of the Royal Court Fredrik Adolf Löwenhielm) and a half-brother of general and diplomat Gustaf Löwenhielm.
Löwenhielm participated in the war operations in Finland in 1788–1790, in Pomerania in 1807, on the Norwegian border and on Åland in 1809.
He was promoted to Lieutenant Colonel in 1808, in 1812 to the General Adjuster, in 1814 to Major General and in 1815 to the Lieutenant-General.
Löwenhielm was a member of the Swedish cabinet between 1822–1839 and represented Sweden at the Congress of Vienna.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
Diana Guardato
Diana Guardato was a member of the aristocratic Patrician Guardato family, and had three children with King Ferdinand I: Diana Guardato is the 16th- Great Grandmother of His Royal Highness Albert II of Belgium, 15th- Great Grandmother of His Majesty Juan Carlos
I of Spain, 17th- Great Grandmother of Philippe of Belgium, 14th- Great Grandmother of His Majesty Manuel II of Portugal, 16th- Great Grandmother of Grand Duke Henri, as well as many others.
Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.

Question: Who is the paternal grandmother of Carl Löwenhielm?
Answer: Louisa Ulrika of Prussia