music: 80's Chart Toppers: Name The Artist: Brilliant Disguise?

Questions

Who, in 1874, painted the picture called La Loge?

Who was the second man to step onto the Moon in 1969?

Who succeeded Caligula as Roman Emperor?

Who is the subject of Anouilh's play L'Alouette ( The Lark )?

Which group had a British top five hit in the 1960s with Monday, Monday?