 Complete the following phrase:  The Empire of Brazil was a 19th-century state that broadly comprised the territories which form modern Brazil and until 1828 Uruguay. Its government was a representative parliamentary constitutional monarchy under the rule of Emperors Dom Pedro I and his son Dom Pedro II. A colony of the Kingdom of Portugal, Brazil became the seat of the Portuguese colonial Empire in 1808, when the Portuguese Prince regent, later King Dom João VI, fled from Napoleons 