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After receiving far fewer votes than expected on the first ballot due to the independent candidacy of Giuliano della Rovere and the loss of control of the Spanish cardinals by Cesare Borgia , d'Amboise threw his support to Francesco Piccolomini , who was elected Pius III on the second ballot despite receiving only four on the first .
 Giuliano della Rovere, Cesare Borgia, d'Amboise, Pius III
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Giuliano della Rovere, Cesare Borgia, d'Amboise, Pius III