Complex sentence: Simeon II of Bulgaria or Simeon of Saxe-Coburg and Gotha (born June 16,1937) is a Bulgarian politician and former king, as the last Tsar of Bulgaria from 1943 to 1946.
Split into simpler sentences: Simeon II of Bulgaria or Simon von Sachsen-Coburg und Gotha (born June 16,1937) is a Bulgarian politician and former Monarch. As Simeon II of Bulgaria he was the last Tsar of Bulgaria from 1943 to 1946.