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.
Marcel Haëntjens
Marcel Haëntjens (24 June 1869 - 10 June 1915) was a French croquet player and equestrian.
He competed at the 1900 Summer Olympics in both croquet and equestrian.
In croquet he competed in both the one ball singles and the two ball singles and did not finish in either.
In equestrian he did not finish in either the high jump or the mixed jumping.
His final event was the hacks and hunter combined.
He finished fourth in this event which, until recent years, was not considered an official Olympic event by the International Olympic Committee.
Mark Abley
Mark Abley( born 13 May 1955) is an award- winning Canadian poet, journalist, editor and non-fiction writer.
His writings show an interest in endangered languages.
He published a memoir," The Organist", in 2019.
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.
Marc Stevens (actor)
Marc Stevens( September 2, 1943 – January 28, 1989), was an American erotic performer.
He is sometimes credited as Mark' 10 ½' Stevens or Mark Stevens.
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.
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.
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.
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.

Question: Who is younger, Marcel Haëntjens or Mark Abley?
Answer: Mark Abley