Who has won the most consecutive Olympic Gold medals?

Aladár Gerevich won 6 consecutive gold medals in Team Sabre Fencing between 1932 and 1960 (he may have won 8 but for the war). Birgit Fischer won 6 consecutive golds in kaying from 1980 to 2004 and may have won 7 but for the boycott by East Germany in Los Angeles Next is Steve Redgrave who won 5 consecutive golds in rowing while three men - Carl Lewis in the Long Jump, Al Oerter in the discuss and Per Elstrom in saling won four consecutive golds in individual events.