one of the first recorded climbers of sugar loaf was an english woman going by the name of henrietta carstairs who is reported to have scaled the mountain in 1817.   

apparently she placed a union jack flag atop only for it to be ripped down the next day by a disgruntled portuguese soldier, who swiftly replaced it with the green and red of the portuguese flag.

some years later, in 1877, three english men, j. oliver, e. benest, and j. branner became the fourth, fifth and sixth people to climb sugar loaf but they wisely placed a brazilian flag on the mountain's summit as to not offend.