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.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Zoran Švonja
Zoran Švonja( born 4 October 1995) is a Serbian football midfielder who plays for Bulgarian club Lokomotiv Sofia.
He is younger brother of Goran Švonja.
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.
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.
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.
Alan Chipp
Alan Chipp( born 9 January 1937) is a former Australian rules footballer who played for the Fitzroy Football Club in the Victorian Football League( VFL).
He is a younger brother of politician Don Chipp.
Atli Viðar Björnsson
Atli Viðar Björnsson( born 4 January 1980) is an Icelandic retired footballer, who mostly played for FH.
Since joining FH in 2001, he played more than 300 matches for the club in all competitions.
During the 2007 season, Atli spent four months on loan at 1. deild karla side Fjölnir where he scored 14 goals in 17 league appearances.
He notably scored an equalising goal against English Premier League side Aston Villa in a 2008 UEFA Cup match, earning the Icelandic outfit a memorable draw away at Villa Park.
On 20 May 2015 Atli became the fourth player to score 100 goals in the Icelandic top division and only the second to score 100 goals for the same club.
Atli's 100th goal was the opening goal against Íþróttabandalag Akraness and came in the 29th minute of the match.
Giuseppe Raddi
Giuseppe Raddi( 9 July 1770 in Florence, Italy – 6 September 1829 the island of Rhodes) was an Italian botanist and curator at the Museum of Natural History of Florence.
He was among the first Europeans to explore and document the flora of South and Central America.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.

Question: Who is younger, Giuseppe Raddi or Atli Viðar Björnsson?