Misc: Who is the patron saint of invalids?

Questions

Which Englissh composer wrote a Sea Symphony and a London Symphony?

Which French footballer was elected European footballer of the year on three successive years 1983-85?

French motor racing driver who won the world championship 1985,86 and 89?

English National Hunt Jockey, champion jockey 1982 and 1986-1992?

Yugoslavian tennis player stabbed by a spectator in 1993 during the Hamburg Open?