Talk:List of coupled cousins/workspace

List of marriages between remote relatives (1st cousins once removed, 2nd cousins, or more remote). Cut from article as irrelevant.

First cousins once removed have a coefficient of relationship of r=6.25% (1/16). Half-first cousins also have  r=6.25%. Second cousins have r=3.1% (1/32), third cousins have r=0.8%, fourth cousins have r=0.2%.

People with a coefficient of relationship below 0.1% (half-fourth cousins and more remote) usually do not have a closer genetic relationship than with the average person from their population, and cannot be readily identified by genetic testing.

Europe
The royal couples listed here are but a small representation of the innumerable cousins of varying degrees who have married between royal or noble houses. Due to the constitutional interest that their marital status raises, as well as the fact that genealogical records of royal houses are more plentiful and readily available than those of ordinary people, their bloodlines are better known than those of commoners.

Outside Europe

 * King Bhumibol Adulyadej of Thailand and his first cousin once removed Mom Rajawongse Sirikit Kitiyakara
 * Prithviraj Chauhan of India and his first cousin once removed Sanyogita.
 * King Darius I of Persia and his third cousin, Atossa
 * Emperor Ichijō of Japan and his wife Fujiwara no Akiko
 * Emperor Kōbun of Japan and Empress Tōchi
 * King Kamehameha the Great of Hawaii and his second cousins: Queen Kaahumanu, Queen Kaheiheimālie and Queen Namahana Piʻia
 * Alexander Liholiho King Kamehameha IV of Hawaii and his second cousin, Queen Emma Kaleleonalani Naea
 * Hussein of Jordan and his first cousin once removed Sharifa Dina bint 'Abdu'l-Hamid
 * Prince Hamzah bin Al Hussein and his second cousin Princess Noor Hamzah
 * Prince Nagaya of Japan and his wife Princess Kibi
 * Prince Shōtoku of Japan and his wife Princess Uji no Kaitako
 * Emperor Hirohito of Japan and his distant cousin Princess Nagako of Kuni
 * Crown Prince Sado of Joseon and his fourth cousin twice removed Lady Hong Hyegyeong
 * Zaichun, the Tongzhi Emperor and his second cousin Lady Alute
 * Emperor Taizong of Tang and his second cousin Consort Yang
 * Emperor Xianzong of Tang and his first cousin once removed Lady Guo
 * Takako, Princess Suga of Japan and her distant cousin Hisanaga Shimazu
 * Emperor Guangwu of Han and his fifth cousin once removed Guo Shengtong
 * Puyi, Xuantong Emperor and his fourth cousin thrice-removed Gobulo Wan Rong
 * Princess Wen Ying (younger sister of Puyi) and her fourth cousin thrice-removed Gobulo Runliang (full older brother of Wan Rong)
 * Princess Wen Wing (younger sister of Puyi) and her fourth cousin thrice-removed Gobulo Runqi (younger half-brother of Wan Rong)
 * Emperor Ruizong of Tang and his second cousin Consort Dou
 * Li Guo'er, Princess Anle and her first husband and second cousin Wu Chongxun, Prince of Gaoyang, as well as her second husband and first cousin Wu Yanxiu, Prince of Huaiyang
 * King Muyeol of Silla and his first cousin once removed Kim Mun-hui (posthumously known as Queen Munmyeong)
 * Princess Cheonmyeong of Silla (daughter of King Jinpyeong of Silla) and her first cousin once removed Kim Yongsu
 * State Princess Wenxian (daughter of the Kangxi Emperor) and her second cousin Tunggiya Shun’anyan
 * Gaius Julius Archelaus Antiochus Epiphanes and his fourth cousin or third cousin once removed Claudia Capitolina

Commoners




A
 * John Adams and his third cousin, Abigail Smith

B
 * Johann Sebastian Bach and his second cousin, Maria Barbara Bach

C D
 * John C. Calhoun, seventh Vice President of the United States, and his first cousin once removed, Floride Calhoun
 * Jeanne Calment, the oldest person whose age was verified by official documents, and her second cousin, Fernand Calment
 * Benedict Swingate Calvert, third Proprietor Governor of Maryland and father of Eleanor Calvert, and his first cousin once removed Elizabeth Calvert
 * Charles Carroll of Carrollton, the only Roman Catholic signer of the United States Declaration of Independence, and his second cousin, Mary Darnall
 * Alfred I. du Pont, great-grandson of DuPont founder and his cousin-by-marriage, Bessie Gardner, as well as his second cousin, Alicia Bradford Maddox

E
 * William Ellery, signer of the Declaration of Independence, and his first cousin once removed, Abigail Cary

F G
 * Vivian Fuchs, British explorer, and his cousin Joyce Connell
 * John F. Fitzgerald, former mayor of Boston and grandfather of John F. Kennedy, and his second cousin Mary Josephine Hannon.

Biographies - Charlotte Perkins Gilman, Gale Group. Retrieved 3-13-2008.
 * Carl Giles, cartoonist, and his cousin and wife, Joan Giles
 * Rudy Giuliani, mayor of New York, 1994–2001, and his second cousin once removed, Regina Peruggi
 * Duncan Grant, Scottish painter, who was in a relationship with his male cousin, the English writer Lytton Strachey.

H
 * Benjamin Harrison V, American revolutionary leader, and his second cousin, Elizabeth Bassett
 * Alexander Herzen, Russian writer and political activist, and his cousin, Natalya Zakharina.
 * Oliver Wendell Holmes, Sr., the poet, and his second cousin, Amelia Lee Jackson
 * Stephen Hopkins, signer of the Declaration of Independence, and his second cousin, Sarah Scott

L M N O P R S
 * Jerry Lee Lewis, rock and roll musician, and his first cousin once removed, Myra Gale Brown
 * Abbott Lawrence Lowell, president of Harvard University, and his distant cousin, Anna Parker Lowell
 * Thomas Malthus, British academic, and his first cousin once removed, Harriet Eckersall
 * Mao Zedong, founder of the People's Republic of China, and his second cousin Luo Yixiu
 * Mōri Terumoto, Japanese Daimyo in late 15th and early 16th century, and his cousin (first wife), Minami no Kata.
 * Samuel Eliot Morison, historian, and his first cousin once removed, Agnes Priscilla Randolph Barton
 * Samuel F. B. Morse, inventor of the Morse code, and his first cousin once removed, Sarah Elizabeth Griswold, his second wife
 * Naoe Kanetsugu, Japanese samurai and Karō of the Uesugi clan in 15th and 16th century, and his cousin, Osen.
 * Ōtomo no Yakamochi, Japanese statesman and waka poet in the Nara period, and his cousin, Sakanoue no Ōiratsume.
 * Edgar Allan Poe and his cousin, Virginia Clemm
 * Bolesław Prus, Polish novelist, and his cousin, Oktawia Trembińska.
 * Sergei Rachmaninoff, composer, and his cousin, Natalia Satina
 * Franklin D. Roosevelt, US president, and his fifth cousin once removed, Anna Eleanor Roosevelt
 * Eisaku Sato, prime minister of Japan, and his cousin, Hiroko Sato

T V
 * Toyotomi Hideyori, Japanese Daimyō, a son of Toyotomi Hideyoshi, and his cousin, Senhime.
 * Martin Van Buren, former president of the US, and his first cousin once removed, Hannah Hoes