Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Jennifer Chen
Jennifer Chen or Chen Chun- chen is a professional pool player.
Chen Jingjing
Chen Jingjing (born 19 August 1975) is a former professional tennis player from China.
Chen, who had a career high ranking of 244, had her best performance on the WTA Tour at the 1995 Nokia Open in Beijing, where she beat fourth seed Karin Kschwendt to make the round of 16.
In 1996 she appeared in five Fed Cup ties for China, for a 6/2 record, winning three matches in both singles and doubles.
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.
Chen Wei-zen
Chen Wei-zen or Chen Wei-jen( born 24 May 1953), is a Taiwanese politician who was the Minister of the Interior from 2014 to 2016.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Blackie Chen
Blackie Chen or Chen Chien- chou( born 2 May 1977) is a Taiwanese television host, actor, basketball manager, entrepreneur and a former basketball player.
Chen Tien
Chen Tien or Chen Tian( – 1990) was the head of the Central Propaganda Department of the Communist Party of Malaya( CPM).
Cheer Chen
Cheer Chen or Chen Chi-chen( born 6 June 1975) is a Taiwanese singer- songwriter.
Lucio Lemmo
Lucio Lemmo( born May 23, 1946 in Naples) is an Italian bishop of the Roman Catholic Church.
He was ordained a priest on 18 July 1973, and made auxiliary bishop of Naples and titular bishop of Turres Ammeniae in North Africa on 9 January 2010.
He was consecrated by Crescenzio Sepe, assisted by Giuseppe Bertello and Antonio Di Donna.

Question: Who is younger, Chen Jingjing or Lucio Lemmo?
Answer: Chen Jingjing