Domhnall mac Cailein
Domhnall mac Cailein or Donald Campbell was a 13th- 14th century Scottish nobleman and the Sheriff of Wigtown.
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.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Leke Oyede
Leke Oyede( born 7 May 1986) is a Nigerian cricketer.
He played in the 2013 ICC World Cricket League Division Six tournament.
In May 2019, he was named in Nigeria's squad for the Regional Finals of the 2018–19 ICC T20 World Cup Africa Qualifier tournament in Uganda.
He made his Twenty 20 International( T20I) debut for Nigeria against Kenya on 20 May 2019.
In October 2019, he was named in Nigeria's squad for the 2019 ICC T20 World Cup Qualifier tournament in the United Arab Emirates.
Donald R. Toussaint
Donald R. Toussaint( May 21, 1927 – January 1986) was appointed by President Jimmy Carter as United States ambassador to Sri Lanka and the Maldives, and served from 21 January 1980 to 7 January 1982.
He was born in Oakland, California and got his PhD from Stanford University.
He joined the Foreign Service in 1956 and was posted in Indonesia, the United Nations, and Iran.
He was Deputy Assistant Secretary of State for International Organization Affairs from 1976 to 1977 and deputy coordination of the U.N. Conference on Science and Technology from 1977 to 1978.
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.
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.
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.
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.

Question: Who is younger, Leke Oyede or Donald R. Toussaint?
Answer: Leke Oyede