Rubuta ci gaba don wannan sakin layi - A wannan lokacin, Jacob Kettler, Duke na Courland, a cikin 1651 ya sami daga shugabannin 'yan asalin da yawa na tsibirin St Andrew da ƙasa a Banyon Point (wanda aka fi sani da Half-Die), Juffure da Gassan. An aika da mazauna, 'yan kasuwa da masu wa'azi daga Courland kuma an gina sansanonin a tsibirin St Andrew da Banyon Point. Wannan wani bangare ne na wani lokaci a tarihin Courlander da aka sani da mulkin mallaka na Couronian, wanda kuma ya gan su suna mulkin mallaka na Tobago. Kurlanders sun gaskata cewa mallakar waɗannan yankuna zai ba su iko a kan kogin kuma ya ba su damar karɓar haraji daga dukan waɗanda suke amfani da hanyar ruwa. Sun gina kagara da aka yi da dutsen yashi na yankin, suka naɗa wani fasto na Lutheran, kuma suka kafa manyan bindigogi a tsibirin don su kula da hanyoyin ruwan da ke arewa da kuma kudu. Shirin shi ne sayar da bayi ga mulkin mallaka a Tobago, amma wannan bai ci nasara ba. A shekara ta 1658, Kettler ya zama fursuna a hannun 'yan Sweden a lokacin yakin tsakanin
Sweden da Poland. Sakamakon haka, ba a da kuɗin da za a ci gaba da tsare-tsaren da kuma zama a Gambia kuma a shekara ta 1659, wakilin Duke na Courland a Amsterdam ya shiga yarjejeniya tare da Kamfanin Yammacin Indiya na Dutch wanda aka ba da dukiyar Duke a Gambia ga kamfanin.