1911 Encyclopædia Britannica, Volume 14… (1911)
“ He is also and more commonly called his son. He was born in his father’s native town, Kavala in Thrace. During his father’s struggle to establish himself in Egypt, Ibrahim, then sixteen years of age, was sent as a hostage to the Ottoman capitan pasha (admiral) , but when Mehemet Ali was recognized as pasha, and had defeated the English expedition under General A. M. Fraser, he was allowed to return to Egypt. When Mehemet Ali went to Arabia to prosecute the war against the Wahhabis in 1813, Ibrahim was left in command in Upper Egypt. ”
