Romanos Argyros (10th century)
Romanos Argyros was a Byzantine aristocrat and son-in- law of Emperor Romanos I Lekapenos.
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
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
Andromachus (son of Achaeus)
Andromachus( lived 3rd century BC) was an Anatolian nobleman of Greek Macedonian and Persian descent.
Andromachus was the son of Achaeus who was a wealthy nobleman who owned estates in Anatolia.
His family was influential in Anatolia and had strong royal connections.
Andromachus had three siblings; one brother: Alexander and two sisters: Antiochis and Laodice I. Andromachus was the father of Achaeus and his sister Laodice II was married to the Seleucid King Seleucus II Callinicus.
As a result of this marriage, the future Seleucid kings, Seleucus III Ceraunus and Antiochus III the Great, were his nephews.
During the course of a war between the Seleucids and the Ptolemies, the Egyptian king Ptolemy III Euergetes took Andromachus prisoner; and when Ptolemy III died in 221 BC, Andromachus was still a prisoner in Egypt.
Since Achaeus was anxious to secure his father's release, Ptolemy IV of Egypt ’s chief advisor, Sosibius, regarded the captive nobleman as a very valuable piece to play in the political game.
He had, perhaps, before the revolt of Achaeus, tried to strike a bargain with him —the release of Andromachus as the price for Achaeus deserting the Seleucid king.
When Achaeus did revolt, pushed by other circumstances, and without having made any compact with Egypt, there was even less reason to let Andromachus go.
Sosibius was very unwilling to part with such a valuable individual; but around 220 BC the Rhodians intervened on behalf of Achaeus, changing the situation radically.
The Rhodians' decision did not spring from altruism.
It was a move with which they hoped to defeat the city- state of Byzantium, with which they were at war.
Byzantium hoped to gain Achaeus' support against Rhodes and its allies.
By obtaining Andromachus' release the Rhodians planned to foil the Byzantine plan and obtain Achaeus' support.
They therefore sent an embassy to Ptolemy IV asking him to deliver Andromachus to them.
While Ptolemy at first refused to free Andromachus, with further consideration, being anxious to please the Rhodians, the king yielded to their request and handed over Andromachus to them.
This was done, and father and son were reunited.
After these events, Andromachus disappears from history.
Achaeus (general)
Achaeus ("Akhaios"; died 213 BC) was a general and later a separatist ruler of part of the Greek Seleucid kingdom.
He was the son of Andromachus, whose sister Laodice II married Seleucus Callinicus, the father of Antiochus III
the Great
He accompanied Seleucus Ceraunus, the son of Callinicus, in his expedition across mount Taurus against Attalus I, and after the assassination of Seleucus Ceraunus revenged his death; and though he might easily have assumed the royal power, he remained faithful to the family of Seleucus.
In 223 BC Antiochus III, the successor of Seleucus Ceraunus, appointed him to the command of all Asia Minor on the western side of Mount Taurus.
Achaeus recovered all the districts which Attalus had gained for the Seleucids once more; but being falsely accused by Hermeias, the minister to Antiochus, of intending to revolt, he did so in self-defence, assumed the title of king, and ruled over the whole of Asia on the western side of the Taurus.
As long as Antiochus was engaged in the war with Ptolemy, he would not march against Achaeus; but upon the conclusion of a treaty with Ptolemy, he crossed the Taurus, uniting his forces with Attalus, and in one campaign deprived Achaeus of his dominions and took Sardis (with the exception of the citadel).
After sustaining a siege of two years, the citadel at last fell into the hands of Antiochus in 213, through the treachery of Bolis (who had been employed by Sosibius, minister to Ptolemy).
Bolis pledged to deliver Achaeus to safety, but turned him over to Antiochus, who immediately put him to death.
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.
Robert Vadra
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He is the son -in- law of Sonia Gandhi and Rajiv Gandhi, and the brother- in- law of Rahul Gandhi.
Laodice II
Laodice II (lived in the 3rd century BC), was the wife of Seleucus II Callinicus.
According to the express statement of Polybius, she was the sister of Andromachus.
Laodice II bore Seleucus II Seleucus III Ceraunus and Antiochus III the Great.
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.

Question: Who is Achaeus (General)'s sibling-in-law?
Answer: Seleucus II Callinicus