From December 1663, when Grigore I Ghica ordered Constantin I's execution at Snagov Monastery, the Wallachian Cantacuzinos were also at the center of a latent civil war, opposing them to the descendants of Andonikos' co-regent, Udrea Băleanu. The Cantacuzino program was partly fulfilled in the 1680s, when Șerban reigned as Prince. However, Cantemir and other early historians claim that he was killed by his own brothers, who resented his attempts to realign Wallachia with the Holy Roman Empire. The renewed conflict also involved on the Cantacuzino side the Craiovești: their leader, Constantin Brâncoveanu, was Andronikos' great-grandson on his mother's side. The family returned to favor under Brâncoveanu's reign, which ended with a reassertion of Ottoman control, and the Prince's execution, following the Pruth River Campaign. The attempt to create a Cantacuzino dynasty with Habsburg assistance ended abruptly during the war of 1716, when Șerban's son Gheorghe was only made "Ban" of occupied Oltenia. At the time a reigning Prince, Ștefan Cantacuzino was deposed by the "Kapucu", then executed. His father, the scholar Constantin II, refused to take the throne, but was still killed by the Ottomans; various other members of the family took flight from Wallachia.