Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Alexander Hays
Alexander Hays( July 8, 1819 – May 5, 1864) was a Union Army general in the American Civil War, killed in the Battle of the Wilderness.
Alexander von Zemlinsky
Alexander Zemlinsky or Alexander von Zemlinsky( 14 October 1871 – 15 March 1942) was an Austrian composer, conductor, and teacher.
Dmitri Varfolomeyev (footballer, born 1978)
Dmitri Nikolayevich Varfolomeyev( born 15 March 1978 in Leningrad) is a former Russian football player.
He is a younger brother of Sergei Varfolomeyev.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Carl Grabow
Carl Wilhelm Louis( Ludwig) Grabow( 1790 – 19 January 1859) was a German entomologist especially interested in Coleoptera and Lepidoptera.
Grabow was born in Prenzlau.
He was an insect dealer in Dresden and a friend and associate of the younger Otto Staudinger.
He collected insects in Germany, Spain and Portugal.
Alexander of Cyprus
Alexander of Cyprus or Alexander Cyprius, perhaps also known as Alexander the Monk or Alexander Monachus, was apparently a 6th- century Cypriot monk active in the cloister near the sanctuary of St. Barnabas in Salaminia or Constantina.
He also had as one of his aims the authentication of the ecclesiastical independence of Cyprus.
Roman Smishko
Roman Smishko is a retired Ukrainian professional footballer who played as a goalkeeper.
He is a younger brother of Ukrainian defender Bohdan Smishko.
Otto Ubbelohde
Otto Ubbelohde( January 5, 1867 – May 8, 1922) was a German painter, etcher and illustrator.
Alexander Carragh Mac Dhòmhnaill, 5th of Dunnyveg
Alexander Carragh Mac Dhòmhnaill, or Alexander MacDonald, 5th lord of Dunnyveg, alive c. 1480- 1538.

Question: Who is younger, Otto Ubbelohde or Alexander Hays?
Answer: Otto Ubbelohde