** William Erasmus Darwin ( 1839 – 1914 ), eldest son of Charles Darwin ( 1809 – 1882 )

** Imperial Prince Yata no Tamakatsu no Oe ( eldest son )

** Malcolm – Duncan's eldest son

** Frederic Maugham, 1st Viscount Maugham, English statesman, the eldest son of the previous

** Louise, Princess Royal and Duchess of Fife, British royal, eldest daughter of Edward VII ( b. 1867 )

** Reza Pahlavi, eldest son of the shah of Iran, proclaims himself the rightful successor to the Peacock Throne.

** Princess Alexandra, Duchess of Fife, eldest grandchild of King Edward VII ( b. 1891 )

** TRH The Prince of Wales and The Duchess of Cornwall ( The Queen's eldest son and his second wife )

** Princess Elisabeth of Belgium, who will inherit the throne after her father, due to a 1991 act of succession which created full cognatic primogeniture, altering the order of succession from eldest son to eldest child.

** the eldest son of Obed-edom ( I Chr.

** Phillip Cooper, eldest son – Jeremy Bulloch

** Princess Marie Gabriele Cécile Charlotte Sophie of Nassau, Prince Jean's eldest child and only daughter, was born out of wedlock on September 8, 1986.

** Prince Constantin Jean Philippe Marie Albert Marc d ' Aviano of Nassau, Prince Jean's eldest son, was born on July 22, 1988.

** Prince Paul-Louis Jean Marie Guillaume of Nassau, Prince Guillaume's eldest son, was born on March 4, 1998.

** Princess Charlotte Justine of Nassau, eldest child and only daughter of Prince Robert, was born on March 20, 1995.

** HRH Princess Bajrakitiyabha ( the Crown Prince's eldest daughter )

** HRH Princess Siribhachudhabhorn ( Princess Chulabhorn's eldest daughter )

** Danny Dallas ( Ted Wass )— Mary Campbell's eldest son.

** The 1st Earl of Abercorn was the 1st Lord's eldest son.

** James Hamilton, Lord Paisley ( c. 1633 – b. 1670 ), eldest son of the 2nd Earl, died without male issue

** John FitzGerald ( 1314 – 1323 ), eldest son of the 2nd Earl, died in childhood

** Gerald FitzGerald, Lord Garratt or Offaly ( 1559 – 1580 ), eldest son of the 11th Earl, predeceased his father without male issue

** George FitzGerald, Earl of Offaly ( 1748 – 1765 ), eldest son of the 1st Marquess

** Lacour-Gayet, A. le Pieux et son Temps ( 1888 )

** María Luisa Sanz de Limantour ( 1925 -), married in 1944 to Alberto Wittig y Cooke, son of Alberto Wittig and wife Cecilia Cooke, and had issue:

** Akita Toshisue ( 秋田俊季, 1598 – 1649 ), son of Sanesue

** Charles Waring Darwin ( 1856 – 1858 ), youngest son of Charles Darwin ( 1809 – 1882 )

** Imperial Prince Nunakura Futotama-Shiki ( Emperor Bidatsu ); born 538 ( second son )

** Imperial Prince Oe or Ikebe ( Emperor YOMEI ); born 540 ( fourth son )

** Imperial Princess Ohotomo or Ohomata ; born about 560 ; married to her nephew Prince Oshisako no Hikohito no Oe, son of Emperor Bidatsu

** Imperial Princess Toneri, born about 565 ; died 603 ; married to her nephew Prince Tame Toyora, son of Emperor Yomei

** Imperial Princess Hasetsukabe no Anahobe no Hashihito, born about 560 ; died 621 ; married ( A ) to her half brother Emperor Yomei ; married ( B ) to her nephew and stepson Prince Tame Toyora, son of Emperor Yomei

** Prince Oshisako no Hikohito no Oe, born about 556, married ( A ) Princess Ohomata ( Ohotomo ), his aunt, daughter of Emperor Kimmei and Soga no Kitashi-Hime, by whom he had a son and a daughter ;( B ) Princess Nukate-Hime ( his half sister ), by whom he had 3 sons ; ( C ) Princess Woharida ( his half sister ), by whom he had a son and a daughter:

** Princess Uji no Shitsukahi ( Uji no Kahitako ), born about 570, married to Prince Shōtoku, son of Emperor Yōmei and Empress Anahobe

** First son: Imperial Prince Fushimi-no-miya Yoshihito ( 伏見宮栄仁親王 ) ( First Fushimi-no-miya )

** Second son: Prince Okinobu ( 興信法親王 ) ( Buddhist Priest )

** Third son: Prince Kōsuke ??

** Second son: Imperial Prince Ohito ( 緒仁親王 ) ( Emperor Go-En ' yū )

** Fifth son: Prince Eijo ( 永助入道親王 ) ( Buddhist Lay Priest )

** Twelfth son: Prince Gyōnin ( 尭仁法親王 ) ( Buddhist Priest )

** First son: Imperial Prince Ryōnin ( 亮仁入道親王 ) ( Buddhist Lay Priest )

** Seventh son: Prince Kakuzō ( 覚増法親王 ) ( Buddhist Priest )

** Fourth son: Prince Kakuei ( 覚叡法親王 ) ( Buddhist Priest )

** Eighth son: Prince Dōen ( 道円入道親王 ) ( Buddhist Priest )

** Eleventh son: Prince Shōjo ( 聖助法親王 ) ( Buddhist Priest )