"Tot in de maent Junij 162[7] hebben de Chinesen niet willen gedoogen datter eenige van onse schepen ofte joncquen van Taijouhan in de riviere van Chincheo [Amoij] ofte andere plaetsen op haer Custe havenden; doch alsoo naderhandt de Chineesche roovers soo machtich ende sterck geworden sijn dat genouchtsaem meester sijn van de Chineesche zee ende meest alle de joncquen op de gantsche Custe vernielt ende verbrandt hebben, doende mede te lande groote destructie ende rooverije, wordende geschat sterck te wesen omtrent 400 joncken ende 60 a 70 duijsent mannen. Den Oversten daervan, Icquan genaempt, sijnde des Compagnies Tolck in Teijouhan geweest ende stilswijgens van daer vertrocken, heeft hem tot rooven begeven ende in corten tijdt soo grooten aenhanck gecregen dat de Regenten van China geen raedt wisten om de roovers van haere Cust te crijgen... Den roover Icquan heeft oock langen tijdt goede correspondentie met d'onse gehadt ende ons vrijwat respect toegedragen, maer heeft eijndelijck sonder onderscheijt genomen al wat becomen conde"  

General Missive January 6, 1628

"Until in the month of June 162[7] the Chinese didn't want to condone that any of our ships or junks to Taijouan harbored in the river of Chincheo [Amoy] or any other place on their Coast; yet thus afterwards the Chinese robbers became that mighty and powerful that sufficient are master of the Chinese sea and destroyed and burned most all the junks on the wholly Coast, also do at land, big destruction and robbery, being estimated to be around 400 junks and 60 to 70 thousand men. The Lieutenant of them, called Icquan, having been the interpreter of the Company in Teijouhan and silently left from there, has given himself to robbery and got in a short time such big following, that the Regents of China did not know what to do, to get the robbers off their Coast ..... The robber Icquan has also had for a long time correspondence with the ours [=our peopele] and gave us reasonable respect, but has eventually without distinction taken all what could get."