He left the Commons after inheriting his father's title in 1860 and made a second trip to Egypt. Aberdeen had previously converted to Evangelicalism and it was in Egypt that he campaigned for the Coptics to convert to his own faith.
Aberdeen left the Commons following his father's inheritance in 1860 and traveled to Egypt again. He had already changed his religious beliefs before this trip, and while in Egypt, he attempted to persuade Coptic Christians to adopt his faith.