Dutch singer born in 1967, known as one of the founders of De Sjonnies. De Sjonnies were a fictional family consisting of Ronnie Ruysdael (the father) and his two sons Friso Ruysdael and Konstantijn Ruysdael. Ronnie was a member from 1991-2009 and now performs solo. He kept his fictional name from De Sjonnies as his solo artist name.