It's true there's an Egbert. As a little child I was forced to sing a twee song called 'Egbert the Easter Egg'.

No offense, Wysi, but I had to check out your 'Jalabert.' You're right.

'Laurent Jalabert (born November 30, 1968 in Mazamet) is a French former professional road racing cyclist...'

So that gives us one more letter. Now how about K and M?