president Josip Broz Tito never stayed there. Devastated by time, the summer house will be rebuilt and renovated as Prince Philip has agreed with local authorities and the Government of Republika Srpska to fund it. According to some sources, the Vidovdan Constitution was signed in the summer house. Furthermore, on 10 February, Prince Philip and his wife met with Milorad Dodik, a Serb member of the Presidency of Bosnia and Herzegovina. On 21 March 2022, Philip and Princess Danica signed the People's initiative to ban the exploitation of lithium and boron in Serbia. Hereditary Prince (2022–present) On 27 April 2022, his elder brother Prince Peter renounced the title of hereditary prince – for himself and his descendants. Philip became Hereditary Prince of Serbia and Yugoslavia, heir apparent to his father Alexander. The ceremony took place at Casa de Pilatos in Seville, Spain, at the presence of his mother Princess Maria da Gloria, his stepfather Duke Ignacio, his wife Danica, his half-sister Countess Sol, Ljubodrag Grujić, a member of the Crown Council, Chancellor of the Orders and the Herald of the House of Karađorđević and Nikola Stanković, Chief of Staff of the Crown Prince. His father, Crown Prince Alexander, did not attend the event. The Crown Prince was dissatisfied with Peter's renunciation. A grandson of King Alexander I of Yugoslavia, Prince Michael, supported the act of renunciation. On 5 May 2022, Philip and his wife attended mass at Cathedral of Saint-Louis des Invalides in Paris in honor of Napoleon I and soldiers of the Grande Armée who died for France, by a invitation from his cousin Jean-Christophe, Prince Napoléon, a descendant of Napoleon, and his wife Princess Olympia. Afterwards, they have traveled to Mileševa Monastery in southwest Serbia and Pljevlja, Montenegro, attending the Holy Liturgy in Mileševa led by Patriarch Porfirije and Metropolitan Joanikije II of Montenegro and the Littoral. In the first week of June 2022, Philip and his family traveled to Kosovo, visiting Gazimestan, Gračanica Monastery, Prizren (Church of the Holy Saviour and Monastery of the Holy Archangels), Priština (St. Nicholas Church), and Visoki Dečani Monastery. During his visits, he opened Vidovdanske svečanosti () in Gračanica and Spasovdanski dani () in Prizren. Furthermore, Prince Philip gave a copy of the Prince Peter's renunciation paper to the library of Visoki Dečani Monastery. On 11 September 2022, Philip and his wife attended a marching from Loznica to the top of Gučevo