Sidelined under Radu Leon, Leurdeanu was brought to justice by Antonie Vodă in 1669. Sentenced to death but then pardoned, he was forced to take orders at Snagov Monastery. He escaped and fled abroad, returning to Wallachia as Grigore Ghica retook the throne, and again served as regent during the Polish–Ottoman War of 1672. Befriending Ghica's successor, George Ducas, he was kept by the latter as "Logothete", "Vornic", and occasional "Ispravnic" of the throne. He was victorious over the Cantacuzinos in his final years, overseeing the arrest and torture of Constantin II.