28 April

1957 Peter Collins won the non-championship Naples Grand Prix 1973 Carlos Menditéguy died 1974 Niki Lauda won the Spanish Grand Prix 1978 Piero Drogo died 1991 Ayrton Senna won the San Marino Grand Prix 1996 Jacques Villeneuve won the European Grand Prix 2002 Michael Schumacher won the Spanish Grand Prix