Hendrik Jan "Henk" Zeevalking was a Dutch politician and co-founder of the Democrats 66 (D66) party and jurist.
Henk Zeevalking in 1981
Democrats 66 is a social liberal and progressive political party in the Netherlands, which positions itself in the centre of the political spectrum. It is a member of the Liberal International (LI) and the Alliance of Liberals and Democrats for Europe (ALDE).
Hans van Mierlo, co-founder and leader between 1966–1973 and 1986–1998
Jan Terlouw, leader from 1973 to 1982
Els Borst, top candidate in the 1998 general election
Alexander Pechtold, leader from 2006 to 2018