Mezue ahịrịokwu na-esonụ: Mgbe Alaeze Ukwu Ottoman nwetaghachiri ókèala ndị Gris, ndị Great Powers nke oge ahụ (Alaeze Ukwu Britain, Alaeze Ukwu Russia na Alaeze France) hụrụ mwakpo ndị Gris dị ka ohere iji mee ka Alaeze Ukwu Ottoman daa mbà ma nwekwuo mmetụta ha na Eastern Mediterranean. Ndị Ukwu Ukwu kwadoro Gris iji nwetaghachi nnwere onwe ya na mgbe mkpebi siri ike
n'agha Navarino Bay, e kwekọrịtara nkwụsịtụ na London (lee Nkwekọrịta London (1827)). E mechara mata nnwere onwe nke Gris site na Protocol London nke 1828 na nnwere onwe ya zuru oke site na Alaeze Ukwu Ottoman site na Protocol nke London nke 1830.