Wyndham Goold
Wyndham Goold( 1812-1854) was a Member of Parliament( MP) for County Limerick from 1850 to 1854.
Goold was educated at Westminster School and Trinity College, Dublin.
He was the son in law of Frederick Falkiner Goold, Archdeacon of Raphoe and brother in law of Bishop Hamilton Verschoyle
Romanos Argyros (10th century)
Romanos Argyros was a Byzantine aristocrat and son-in- law of Emperor Romanos I Lekapenos.
Jack Soble
Jack Soble (May 15, 1903 – 1967) was a Lithuanian who, together with his brother Robert Soblen, penetrated Leon Trotsky's entourage for Soviet intelligence in the 1920s.
Later, in the United States, he was jailed together with his wife Myra on espionage charges.
He was born in Vilkaviskis, Lithuania as Abromas Sobolevicius and sometimes used the name Abraham Sobolevicius or Adolph Senin.
Robert Vadra
Robert Vadra is an Indian businessman, entrepreneur and the husband of Priyanka Gandhi.
He is the son -in- law of Sonia Gandhi and Rajiv Gandhi, and the brother- in- law of Rahul Gandhi.
Myra Soble
Myra Soble (March 18, 1904 – 1992) together with her husband Jack Soble was tried and jailed for her involvement in the Soble spy ring.
Soble (née Perske) was born on March 18, 1904, in Nikloaev, Ukraine, Russia.
She was the wife of Jack Soble.
Myra and Jack were married on November 24, 1927, in Moscow.
In early 1928, Myra went to Germany to join Jack, who had gone there shortly after their marriage.
Myra returned to Russia after her mother became ill in 1931.
In 1933, she and Jack were reunited when he went back to Russia to be with her.
Jack and Myra and most of Jack's family left Russia on January 10, 1941, from Vilkaviskis, Lithuania.
They traveled to Japan after they were given Japanese visas.
Myra and other members of the group entered the United States at San Francisco on September 27, 1941.
Jack Soble arrived in San Francisco on October 20, 1941.
On August 9, 1957, Myra received a 5½ year prison sentence for her role in the Soble spy ring, and her husband seven years.
On October 8, 1957, Federal Judge Richard H. Levet, United States District Court, Southern District of New York, reduced her prison sentence from 5½ years to four years.
She was transferred to the Alderson Prison for Women, Alderson, West Virginia on November 12, 1957.
On July 5, 1991, President George H.W. Bush granted Myra a presidential pardon for her conviction
(Conspiracy to receive and obtain national defense information and transmit same to foreign government, 18 U.S.C. § 793).
Greg Penner
Gregory B. Penner( born December 18, 1969) is an American businessman and venture capitalist.
Penner was named the chairman of Walmart on June 5, 2015.
He is the son-in- law of S. Robson Walton and the grandson- in- law of Sam Walton, the founder of Walmart.
Nick Sidi
Nick Sidi( born 22 February 1966 in Manchester, England) is an English actor.
He is the son -in- law of actress Rosalind Knight and brother- in- law of actress Susannah Elliott- Knight.
He often plays drama or comedy roles on television and frequently appears in BBC dramas.
Robert W. Levering
Robert Woodrow Levering( October 3, 1914 – August 11, 1989) was a U.S. Representative from Ohio, son-in- law of Usher L. Burdick and brother- in- law of Quentin N. Burdick.
Prospero Bottini
Prospero Bottini( 1621 – 21 March 1712) was a Roman Catholic prelate who served as Titular Archbishop of" Myra"( 1675 – 1712).
Charles Francis Norton
Charles Francis Norton( 1807 – 1835) was a 19th- century Member of Parliament for Guildford.
Norton was also a Captain of 52nd Light Infantry; son-in- law of Sir Colin Campbell; brother- in- law of writer Caroline Norton

Question: Who is Myra Soble's sibling-in-law?
Answer: Robert Soblen