Complex sentence: This arrest led to retaliatory arrest and imprisonment of all Egyptian merchants in Ethiopia, and in 1361 the Egyptian Sultan al-Malik al-Salih released the Patriach and then sought amicable relations with Ethiopian Emperor.
Split into simpler sentences: This arrest led to retaliatory arrest and imprisonment of all Egyptian merchants in Ethiopia. In 1361, the Egyptian Sultan al-Malik al-Salih released the Patriach and then sought amicable relations with Ethiopian Emperor.