1930 Death Pieter Jelles Troelstra, Dutch SDAP leader, dies at 70 1924 Event Pieter Jelle Troelstra leaves 2nd Chamber 1918 Event Dutch SDAP leader Troelstra announces revolution 1913 Event Queen Wilhelmina meets SDAP-leader Troelstra 1860 Birthday Pieter Jelles Troelstra, Dutch MP, SDAP
