Rubuta ci gaba don wannan sakin layi - Garin ya zama mafi mahimmanci a lokacin Tudor na cin nasara na Ireland kuma ya zo a kai hare-hare akai-akai. A lokacin O'Doherty tawaye a 1608 an kai hari ga Sir Cahir O'Doherty, shugaban Irish na Inishowen, wanda ya ƙone yawancin garin
kuma ya kashe Gwamna George Paulet. Soja kuma ɗan siyasa Sir Henry Docwra ya yi ƙoƙari sosai don haɓaka garin, yana samun suna a matsayin "wanda ya kafa Derry"; amma an zarge shi da rashin iya hana harin O'Doherty, kuma ya koma Ingila.