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Alexandru Callimachi ( 1737 – 12 December 1821 ) was Prince of Moldavia during the period of 6 May 1795 through 18 March 1799 .
 Alexandru Callimachi
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Alexandru Callimachi