Marianne Aasen
Marianne Aasen (born 21 February 1967) is a Norwegian politician for the Labour Party.
She was born in Bergen, but grew up in Moss.
She graduated with a cand.polit.
degree in 1993 from the University of Oslo.
She worked as a journalist in "Arbeiderbladet" from 1991 to 1993 and Avisenes Nyhetsbyrå from 1993 to 1995.
She was then information director of the European Movement Norway from 1998 to 2000.
In her party she worked as a political advisor for the Labour Party parliamentary group from 1995 to 1996 and 2001 to 2005.
From 2000 to 2001, during the first cabinet Stoltenberg, she was a political advisor in the Ministry of Local Government and Regional Development.
Aasen has never held local political office, but chaired the party chapter in Asker from 2003 to 2004.
She was elected to the Norwegian Parliament from Akershus in 2005.
For twelve years she was married to Simen Agdestein, an International Grandmaster of chess and former Norwegian international footballer.
The couple had two children, but they split in 2008.
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
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.
Lee Chan-hyuk
Lee Chan- hyuk( born September 12, 1996), is a South Korean singer, songwriter and producer.
He debuted as a member of the sibling duo AKMU in April 2014, under YG Entertainment.
Simen Agdestein
Simen Agdestein (born 15 May 1967) is a Norwegian chess grandmaster, chess coach, author, and former professional footballer as a striker with the Norway national football team.
Agdestein won seven Norwegian chess championships, including the 2005 title.
He is also the former coach of Magnus Carlsen, and brother of Carlsen's manager, Espen Agdestein.
He has authored and co-authored several books on chess, including a biography of Carlsen.
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.
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.
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
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 Marianne Aasen's sibling-in-law?