72690
During the reign of King João I , a new real was introduced , known either as the " real of libras " or the " real branco " .
 João I
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 João I