Complex sentence: Wube Haile Maryam (also called Dejazmach Wube or Wube Haile Mariam) was a ruler in northern Ethiopia and central Eritrea in the Tigrey and Simien and other coastal territories.
Split into simpler sentences: Wube Haile Maryam (also called Dejazmach Wube or Wube Haile Mariam) was a ruler in northern Ethiopia and central Eritrea. Wube was the ruler of Tigrey and Simien and other coastal territories.