“They have deprived the natives of their property or turned it to their own use, and have subjected some of the inhabitants of said islands to perpetual slavery (subdiderunt perpetuae servituti), sold them to other persons and committed other various illicit and evil deeds against them… Therefore We … exhort, through the sprinkling of the Blood of Jesus Christ shed for their sins, one and all, temporal princes, lords, captains, armed men, barons, soldiers, nobles, communities and all others of every kind among the Christian faithful of whatever state, grade or condition, that they themselves desist from the aforementioned deeds, cause those subject to them to desist from them, and restrain them rigorously. And no less do We order and command all and each of the faithful of each sex that, within the space of fifteen days of the publication of these letters in the place where they live, that they restore to their pristine liberty all and each person of either sex who were once residents of said Canary Islands … who have been made subject to slavery (servituti subicere). These people are to be totally and perpetually free and are to be let go without the exaction or reception of any money.”
Pope Eugene IV: Sicut Dudum, 1435