Simon Petrov
Simon Petrov( born January 27, 1976) is a Slovenian professional basketball coach and former player.
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.
Simon de Montfort the Younger
Simon VI de Montfort( April 1240 – 1271), known as Simon de Montfort the Younger, was the second son of Simon de Montfort, 6th Earl of Leicester and Eleanor of England.
His father and his elder brother Henry were killed at the Battle of Evesham in August 1265.
The younger Simon had been slow to bring his forces from London, and had seen them and their banners captured by Prince Edward, who then used the banners to trick Simon's father.
The younger Simon came to Evesham just in time to see his father's head atop a pike.
The younger Simon tried to raise a rebellion in Lincolnshire, but this had petered out by Christmas.
He and his younger brother Guy escaped to France and Italy: in 1271 they discovered and murdered their cousin Henry of Almain( whom they blamed for the death of their father) at the church in Viterbo, for which they were excommunicated.
Simon died later that year from Toscana virus at Siena," cursed by God, a wanderer and a fugitive".
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.
Alan Horsfall
Alan or Allan Horsfall (5 August 1926 – 24 May 2007) was an English professional rugby league footballer who played in the 1940s and 1950s.
He played at club level for Leeds and Castleford, as a , i.e. number 8 or 10, during the era of contested scrums.
Allan Oviedo
Allan Fernando Oviedo Rodríguez( born November 8, 1970) is a retired Costa Rican football striker.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Markus Weissenberger
Markus Weissenberger( born March 8, 1975) is an Austrian former footballer who played as a midfielder.
He is a younger brother of former Austria international player Thomas Weissenberger.
Anton Shunto
Anton Shunto( born 31 May 1988) is a Belarusian professional footballer.
As of 2019, he plays for Molodechno.
He is a younger brother of Denis Shunto, who is a founder and former president of Krumkachy Minsk.

Question: Who is younger, Simon Petrov or Allan Oviedo?
Answer: Simon Petrov