in the country. His increasing "indifference towards the fate of the regime" and his inaction to protect the imperial system once it came under threat have led historians to attribute the "prime, perhaps sole, responsibility" for the dissolution of the monarchy to the emperor himself. The lack of an heir who could feasibly provide a new direction for the nation also threatened the long-term prospects for the Brazilian monarchy. The Emperor's heir was his eldest daughter, Isabel, who had no interest in, nor expectation of, becoming the monarch. Even though the Constitution allowed female succession to the throne, Brazil was still a very traditional, male-dominated society, and the prevailing view was that only a male monarch would be capable as head of state. Pedro II, the ruling circles and the wider political establishment all considered a female successor to be inappropriate, and Pedro II himself believed that the death of his two sons and the lack of a male heir were a sign that the Empire was destined to be supplanted. A weary Emperor who no longer cared for the throne, an heir who had no desire to assume the crown, an increasingly discontented ruling class who were dismissive of the Imperial role in national affairs: all these factors presaged the monarchy's impending doom. The means to achieve the overthrow of the Imperial system would soon appear within the Army ranks. Republicanism had never flourished in Brazil outside of certain elitist circles, and had little support in the provinces. A growing combination of republican and Positivist ideals among the army's junior and mid-level officer ranks, however, began to form a serious threat to the monarchy. These officers favored a republican dictatorship, which they believed would be superior to the liberal democratic monarchy. Beginning with small acts of insubordination at the beginning of the 1880s, discontent in the army grew in scope and audacity during the decade, as the Emperor was uninterested and the politicians proved incapable of re-establishing the government's authority over the military. The 1867 collapse of the French-sponsored Second Mexican Empire left Brazil the only Latin American monarchical regime for another 22 years. Fall The nation enjoyed considerable international prestige during the final years of the Empire and had become an emerging power in the international arena. While Pedro II was receiving medical treatment in Europe, the parliament passed, and Princess Isabel signed on 13 May 1888, the