Eleni Gabre-Madhin
Eleni Zaude Gabre- Madhin, an Ethiopian economist with Swiss nationality, is a former Chief Executive Officer of the Ethiopia Commodity Exchange( ECX).
She has had many years of experience working on agricultural markets – particularly in Sub- Saharan Africa – and has held senior positions in the World Bank, the International Food Policy Research Institute( Washington), and United Nations( Geneva).
Khalid al-Habib
Khalid al- Habib also believed to use the nom de guerre Khalid al Harbi is an Al- Qaeda leader who has overseen Al- Qaeda operations in Afghanistan.
In 2005 it was reported that al- Habib died in a US missile strike on the Pakistani village of Damadola though it is unclear whether this is the case as Pakistani officials have claimed that no Al- Qaeda leaders died in the attack.
al- Habib's nationality is not clear with sources claiming he may be Egyptian or Moroccan.
Ruth Haring
Ruth Inez Haring (also known as Ruth Orton; January 23, 1955 – November 29, 2018) was an American chess player and Woman International Master.
She competed in the United States Women's Championship in the 1970s and 1980s, and represented the US in the 1974, 1976, 1978, 1980, and 1982 Chess Olympiads.
Haring was elected to the US Chess Federation Executive Board in 2009, serving as vice president for two years, and then as president for four years.
Haring was reelected in 2013 for a three-year term, and served on the executive board for seven years.
Haring served on the CalChess Board of Directors, and was the FIDE Zonal President for zone 2.1, the U.S.A.
She was married to chess Grandmaster Peter Biyiasas.
Haring died on November 29, 2018 at the age of 63.
Roberto Savio
Roberto Savio( born in Rome, Italy, but also holding Argentine nationality) is a journalist, communication expert, political commentator, activist for social and climate justice and advocate of global governance.
He has spent most of his career with Inter Press Service( IPS), the news agency which he founded in 1964 along with Argentine journalist Pablo Piacentini.
Savio studied Economics at the University of Parma, followed by post -graduate courses in Development Economics under Gunnar Myrdal, History of Art and International Law in Rome.
He started his professional career as a research assistant in International Law at the University of Parma.
Peter Biyiasas
Peter Biyiasas (born November 19, 1950) is a Canadian chess grandmaster.
He was Canadian champion in 1972 and 1975, represented Canada with success on four Olympiad teams, and played in two Interzonals.
He moved to the United States in 1979, settling in California.
He has been retired from competitive play since the mid-1980s, and works as a computer programmer.
During the late 1970s and early 1980s, he was a frequent training partner of Bobby Fischer, who stayed at his home in San Francisco for extended periods.
Ali Rahuma
Ali Khalifa Rahuma( born May 16, 1982) is a Libyan football midfielder who's nationality is Libyan.
He currently plays for Al- Ittihad, and is a member of the Libya national football team.
Fulco
Fulco was the first known missionary Bishop of Estonia.
He was appointed in 1165 by Eskil, the Danish Archbishop of Lund.
Before his appointment, Fulco was a Benedictine monk in the abbey of Moutier- la- Celle, near Troyes in France.
His nationality is not known.
After his appointment, Fulco appears in sources only once.
In 1171, Pope Alexander III asked the Archbishop of Trondheim to assign an Estonian monk Nicolaus living in Stavanger to go to Fulco's assistance.
No further information survives about Fulco's work in Estonia, or whether he ever even got there.
Rumbold of Mechelen
Saint Rumbold( or" RumoldRomuold") was an Irish or Scottish Christian missionary, although his true nationality is not known for certain.
He was martyred near Mechelen by two men, whom he had denounced for their evil ways.
Saint Rumbold's feast day is celebrated by the Roman Catholic Church, and Western Rite Orthodox Churches, on 24 June; and it is celebrated in Ireland on 3 July.
He is the patron saint of Mechelen, where St. Rumbold's Cathedral possesses an elaborate golden shrine on its high altar, containing relics attributed to the saint.
It is rumoured that his remains are buried inside the cathedral.
Twenty- five paintings in the choir illustrate his life.
Nayelly Hernández
Nayelly Hernández( born 23 February 1986) is a former Mexican female professional squash player.
She has represented Mexico internationally in several international competitions including the Central American and Caribbean Games, Pan American Games, Women's World Team Squash Championships.
Nayelly achieved her highest career ranking of 57 in October 2011 during the 2011 PSA World Tour.
Her husband Chris Walker whose nationality is English is also a professional squash player.
She joined the Trinity College in 2008 as the first Mexican female to join a US college for squash and graduated in 2010.
Baglan Mailybayev
Baglan Mailybayev( in Kazakh Бағлан Асаубайұлы Майлыбаев) was born on 20 May 1975 in Zhambyl region, Kazakhstan.
His nationality is Kazakh.
He is a politician of the Republic of Kazakhstan, Deputy Head of the Presidential Administration of the Republic of Kazakhstan, Doctor of Law( 2002)( under the supervision of Professor Zimanov S.Z.- scientific advisor and academician of National Academy of Sciences of the Republic of Kazakhstan) and Ph.D. in Political Science( 1998).

Question: What nationality is Ruth Haring's husband?