throne. Peter and his companions were charged with high treason, for which the mandatory penalty was death. As he was living in Paris at the time of the proceedings, Peter was convicted in absentia and sentenced to death by hanging. Move to Cetinje In 1883, Peter moved to Cetinje, the capital of the second independent Serb state, Montenegro, with the intention of marrying the eldest daughter of Montenegro's ruler, Prince Nicholas. Peter and Ljubica Petrović-Njegoš were married in Cetinje in the summer of 1883. The marriage upset the region's volatile geopolitical balance, causing great unease in the Austro-Hungarian, Russian and Serbian capitals. Belgrade perceived it as a sign of increasing closeness between the Petrović-Njegoš and Karađorđević dynasties. Relations between the two Serb states worsened, as did relations between Austria-Hungary and Russia, which had been vying for power in the Balkans for decades. When his father died in the spring of 1885, Peter became the head of the House of Karađorđević and took the title of prince. Serbia, previously a principality, was declared a kingdom in 1882, and henceforth, the Serbian monarch used the title King of Serbia. Ljubica died during childbirth in March 1890. The couple had five children, three of whom reached adulthood: Helen (Jelena), Milena, George (Đorđe), Alexander (Aleksandar), and Andrew (Andrej). Milena died in infancy and Andrew died along with his mother during childbirth. Following his father's death, Peter's financial situation deteriorated and he became dependent on his father-in-law, as well as Russia and his brother George, for support. Following the Royal Serbian Army's rout in the Serbo-Bulgarian War of 1885, Peter and Nicholas devised a plan to invade Serbia and overthrow the Obrenović dynasty. At the last minute, Nicholas abandoned the idea. Peter felt betrayed by the Prince's decision to back out, leading to long lasting animosity. Nevertheless, he remained in Cetinje until 1894, devoting himself to his surviving children, who finished their primary education there. In 1894, Peter moved to Geneva with his three children, where he was to remain until 1903. In 1899, Tsar Nicholas II invited Prince George and Prince Alexander, as well as Peter's nephew Paul, to attend the Corps des Pages military academy in Saint Petersburg free of charge. Due to his poor financial standing, which prevented him from sending the boys to private schools in Switzerland, Peter accepted the Tsar's offer. May Coup In July 1900, King Alexander, Milan's 23-year-old