Donna Harun
Donna Harun( born February 21, 1968) is an Indonesian actress and model of Dutch- Indonesian descent.
She is the mother of actor Ricky Harun and mother- in- law of the actress and model Herfiza Novianti.
Vera Miletić
Vera Miletić (Serbian Cyrillic: Вера Милетић; 8 March 1920 – 7 September 1944) was a Serbian student and soldier.
She was notable for being the mother of Mira Marković, posthumously making her the mother-in-law of Serbian president Slobodan Milošević.
Maria Thins
Maria Thins( c. 1593 – 27 December 1680) was the mother- in- law of Johannes Vermeer and a member of the Gouda Thins family.
Caracalla
Caracalla (Latin: "Marcus Aurelius Severus Antoninus Augustus"; 4 April 188 – 8 April 217), formally known as Antoninus , ruled as Roman emperor from 198 to 217 AD.
He was a member of the Severan dynasty, the elder son of Septimius Severus and Julia Domna.
Co-ruler with his father from 198, he continued to rule with his brother Geta, emperor from 209, after their father's death in 211.
He had his brother killed later that year, and reigned afterwards as sole ruler of the Roman Empire.
Caracalla's reign featured domestic instability and external invasions by the Germanic peoples.
Caracalla's reign became notable for the Antonine Constitution , also known as the Edict of Caracalla, which granted Roman citizenship to all free men throughout the Roman Empire.
The edict gave all the enfranchised men Caracalla's adopted praenomen and nomen: "Marcus Aurelius".
Domestically, Caracalla became known for the construction of the Baths of Caracalla, which became the second-largest baths in Rome; for the introduction of a new Roman currency named the "antoninianus", a sort of double "denarius"; and for the massacres he enacted against the people of Rome and elsewhere in the empire.
In 216, Caracalla began a campaign against the Parthian Empire.
He did not see this campaign through to completion due to his assassination by a disaffected soldier in 217.
Macrinus succeeded him as emperor three days later.
The ancient sources portray Caracalla as a tyrant and as a cruel leader, an image that has survived into modernity.
Dio Cassius (155 – 235) and Herodian (170 – 240) present Caracalla as a soldier first and as an emperor second.
In the 12th century, Geoffrey of Monmouth started the legend of Caracalla's role as the king of Britain.
Later, in the 18th century, the works of French painters revived images of Caracalla due to apparent parallels between Caracalla's tyranny and that ascribed to Louis XVI of France .
Modern works continue to portray Caracalla as an evil ruler, painting him as one of the most tyrannical of all Roman emperors.
Baroness Gösta von dem Bussche-Haddenhausen
Baroness Gösta von dem Bussche- Haddenhausen( 26 January 1902 – 13 June 1996) was the mother of Prince Claus of the Netherlands, who was the Prince Consort of Queen Beatrix of the Netherlands, thus making her the mother- in- law of the former Dutch Queen.
She is also the paternal grandmother of King Willem- Alexander of the Netherlands, who is the current Dutch King.
Doria Ragland
Doria L. Ragland( born September 2, 1956) is the mother of Meghan, Duchess of Sussex, the mother- in- law of Prince Harry, and the maternal grandmother of Archie Mountbatten- Windsor, who is seventh in line to the British throne.
She is a former makeup artist, business owner, yoga instructor, and former social worker who worked in the mental health sector from 2015 to 2018.
Priscilla Pointer
Priscilla Marie Pointer( born May 18, 1924) is an American stage, film and television character actress.
She began her career in the theater, including productions on Broadway.
Later, Pointer moved to Hollywood to act in films and on television.
She is the mother of Amy Irving, therefore making her the former mother- in- law of filmmakers Steven Spielberg and Bruno Barreto and the mother- in- law of documentary filmmaker Kenneth Bowser, Jr.
Marian Shields Robinson
Marian Lois Robinson( née Shields; born July 29, 1937) is the mother of Michelle Obama, former First Lady of the United States, and Craig Robinson, a basketball executive, and the mother- in- law of former U.S. President Barack Obama.
Fulvia Plautilla
Publia Fulvia Plautilla, Fulvia Plautilla or Plautilla
(c. 185/around 188/189 – 211) was the wife of the Roman emperor Caracalla, her paternal second cousin.
After her father was condemned for treason, she was exiled and eventually killed, possibly on Caracalla's orders.
She was related to Julius Caesar's first wife Cornelia.
Eldon Howard
Eldon Howard was a British screenwriter.
She was the mother- in- law of Edward J. Danziger and wrote a number of the screenplays for films by his company Danziger Productions.

Question: Who is the mother-in-law of Fulvia Plautilla?
Answer: Julia Domna