Felipe Bulnes
He was first Minister of Justice and then he assumed office as Minister of Education following a cabinet shuffle on July 18 amidst the ongoing 2011 Chilean student protests but renounced about six months later on December 29 explaining that he left because a "cycle has finished" and not because he would be fired . 
<triplet> 2011 Chilean student protests <subj> 2011 <obj> point in time