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This led to him being granted the title of Baron Freiherr von Bush of Coburg-Gotha by Ernest II , Duke of Saxe-Coburg and Gotha in ducal letters patent - dated 25 December 1889 .
 Baron Freiherr von Bush, Coburg-Gotha, Ernest II , Duke of Saxe-Coburg and Gotha
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Baron Freiherr von Bush, Coburg-Gotha, Ernest II , Duke of Saxe-Coburg and Gotha