Sydney Howard Vines
Sydney Howard Vines FRS( 31 December 1849 – 4 April 1934) was a British botanist and academic.
He was Sherardian Professor of Botany at Oxford University from 1888 to 1919, and served as President of the Linnean Society of London from 1900 to 1904.
He directed the publication of the" Annals of Botany" from 1887 to 1899.
Mehmed Begzadić
Mehmed Begzadić( born 5 January 1993) is a Swiss and Bosnian- Herzegovinian professional footballer currently playing for FC Bavois.
Seniha Sultan
Seniha Sultan (5 December 1851 – 15 September 1931) was an Ottoman princess, the daughter of Sultan Abdulmejid I and Nalandil Hanım.
She was the half-sister of Sultans Murad V, Abdul Hamid II, Mehmed V, and Mehmed VI.
Sydney Howard
Sydney Howard (7 August 1884 – 12 June 1946) was an English stage comedian and film actor born in Leeds, West Riding of Yorkshire.
Already a major stage star, Howard made his feature film début in Jack Raymond's "Splinters" (1929), and went on appearing in unique roles in films such as "French LeaveUp for the Cup" and "The Mayor's Nest".
Despite his popularity in the 1920s and 1930s films he appeared in, Howard is almost totally forgotten today.
His most revived film is "When We Are Married", in which he played a drunken photographer.
In 1937 British exhibitors voted him the 10th most popular British star at the box office.
Sydney Howard Smith
Sydney Howard Smith( 3 February 1872 – 27 March 1947) was a British tennis and badminton player.
Irene Howard
Irene Mary Steiner Howard( 17 June 1903 – December 1981) was a British casting director.
Her brothers Leslie Howard and Arthur Howard, and nephew, Alan Howard, became successful actors.
She died, aged 78, in Camden Town, North London, England.
Mediha Sultan
Mediha Sultan( 30 July 1856 – 7 January 1928) was an Ottoman princess, the daughter of Sultan Abdulmejid I and Gülüstü Hanım.
She was the full sister of Sultan Mehmed VI and the half- sister of the Sultans Murad V, Abdul Hamid II and Mehmed V.
Naile Sultan (daughter of Abdulmejid I)
Naile Sultan (30 September 1856 – 18 January 1882) was an Ottoman princess, the daughter of Sultan Abdulmejid I and Şayeste Hanım.
She was the half-sister of Sultans Murad V, Abdul Hamid II, Mehmed V, and Mehmed VI.
Behice Sultan
Behice Sultan( 26 August 1848 – 21 December 1876) was an Ottoman princess, daughter of Sultan Abdulmejid I and Nesrin Hanım.
She was the half- sister of Sultans Murad V, Abdul Hamid II, Mehmed V, and Mehmed VI.
Cemile Sultan
Cemile Sultan( 18 August 1843 – 26 February 1915) was an Ottoman princess, the daughter of Sultan Abdulmejid I and Düzdidil Kadın.
She was the half sister of Sultans Murad V, Abdul Hamid II, Mehmed V, and Mehmed VI.

Question: Do Sydney Howard and Mehmed Begzadić share the same nationality?
Answer: no