Claim: Gillis Valckenier became an orangist in 1670 and insulted Dirck Tulp and Lambert Reynst, resulting in many people losing their jobs.
Evidence: In 1670 he became an orangist and supported the cancellation of the Perpetual Edict in July 1672. He had insulted Dirck Tulp and Lambert Reynst; in total sixteen members of the city council lost their seat, jobs on his advice, including Andries de Graeff.