Original: She had one brother, Prince Charles Edward, Duke of Albany (1884 â "1954) and later reigning Duke of Saxe-Coburg and Gotha (1900 â" 1918).
Simplified: She had one brother, Prince Charles Edward, Duke of Albany (1884 â "1954) who was reigning Duke of Saxe-Coburg and Gotha (1900 â" 1918).