Complex sentence: According to Orosius, Heraclianus was sent to Africa in 409; it is also known that in 408 the Governor of Africa was some John, who was killed by the people of his province.
Split into simpler sentences: According to Orosius, Heraclianus was sent to Africa in 409. Orosius also states that the Governor of Africa in 408 was "John", who was killed by the people of his province.