106155
In the reign of King João I ( 1385 – 1433 ) , the real branco of 3 ½ libras and the real preto of 7 soldos ( one tenth of a real branco ) were issued .
 João I
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 João I