Albert Visetti
Albert Anthony Visetti( 13 May 1846–10 July 1928) was a Dalmatian musician who moved to London where he was Professor of Singing at the Royal College of Music, becoming a Fellow in 1921.
He was the stepfather of the novelist Radclyffe Hall.
Paola Colonna
Paola Colonna (c. 1378 – 3 November 1450) was the lady of Piombino from 1441 until 1445.
She was born in Genazzano as the daughter of Agapito Colonna, lord of Genazzano.
Her brother Giordano was shortly Prince of Salerno and Duke of Venosa, while her brother Oddo would become Pope Martin V.
On 18 June 1396 she was married to Gherardo Appiani, lord of Piombino.
At his death she held the regency for their son Iacopo.
When the latter also died, she left the principate, against the legitimate heir Emanuele Appiani, to her daughter Caterina, married to the condottiero Rinaldo Orsini.
She died in Piombino in 1450.
Albert E. Austin
Albert Elmer Austin( November 15, 1877 – January 26, 1942) was a Republican member of the United States House of Representatives from 1939 to 1941 and member of the Connecticut House of Representatives from 1917 to 1919 and from 1921 to 1923.
He was the stepfather of Clare Boothe Luce.
Charles Williams, Baron Williams of Elvel
Charles Cuthbert Powell Williams, Baron Williams of Elvel,( born 9 February 1933) is a retired business executive and a Labour peer.
In his 20s he played first- class cricket while at university and for several seasons afterwards.
He is the stepfather of Justin Welby, the Archbishop of Canterbury.
Gerald Rudolff Ford
Gerald Rudolff Ford( December 9, 1890 – January 26, 1962) was an American businessman, creator of Ford Industries, and Republican politician who was the stepfather of U.S. President Gerald Ford and for whom Ford legally changed his name.
Morris Harvey
Morris Harvey( 1877– 1944) was a British actor and writer.
A renowned character actor, he also wrote for the stage, including material for Broadway revues, in which he also appeared.
He was the stepfather of film director Anthony Harvey.
Emanuele Appiani
Emanuele Appiani (c. 1380 – 15 February 1457) was Prince of Piombino during the Appiani dynasty in the Renaissance.
He was born in Pisa, the son of Iacopo I Appiani, and followed his brother Gherardo to Piombino when he became lord of the Tuscan city.
When Gherardo died, he remained in the court but the lordship was inherited by his son Iacopo II, under the tutorage his mother Paola Colonna.
When Iacopo II died, despite Emanuele was the last living Appiani male, she kept the seigniory, thanks to the support of her son-in-law, the condottiero Rinaldo Orsini.
When Paola died, the latter inherited the title under his daughter Caterina Appiani.
In reply Emanuele married in 1445 to Colia de' Giudici, illegitimate daughter of King Alfonso V of Naples, who marched to Piombino with an army.
Orsini died of plague, followed soon afterwards by Caterina, and Emanuele could enter Piombino in 1452 after being elected lord by the city's Elders.
He died at Piombino in 1457, being succeeded by his son Iacopo.
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Iacopo II Appiani
Iacopo II Appiani (1400 – December 27, 1441) was the lord of Piombino from 1411 until 1427.
He was born in Piombino, the son of Gherardo Appiano, whom he succeeded in 1411, remaining under the regency of his mother Paola Colonna until coming of age.
He is described as a cruel man, switching abruptly his alliances from the Republic of Florence to that of Siena, and then moving again to the former.
He strengthened his position by marrying Donella Fieschi, daughter of the powerful Genoese patrician and Florentine commander Gian Luigi Fieschi.
Iacopo died childless in 1427, perhaps poisoned, and was succeeded by his mother.
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Héctor Barrantes
Héctor Barrantes Sansoni( 1939–1990) was an Argentine polo player.
He was the stepfather of Sarah, Duchess of York.
Jerrold Wexler
Jerrold Wexler( June 27, 1924 – November 10, 1992) was a noted American businessman and film producer.
He was the brother of cinematographer Haskell Wexler and the stepfather of actress Daryl Hannah.

Question: Who is the father of Iacopo Ii Appiani?
Answer: Gherardo Appiani