His father founded the ecumenical development cooperation fund ICCO , which he also led for many years .
Bos was raised in a Doorbraak social - democratic family with a Protestant background in Vlaardingen .
Bos ' father founded the ecumenical development cooperation fund ICCO , which he also led for many years .
Bos was raised in a Doorbraak social - democratic family with a Protestant background in Vlaardingen .