Algerian pirates on 10 May 1811 off the shore of Lampedusa. Bouboulina took over his fortune and his trading business, acquiring shares in other Spetsiot ships. She traveled to Constantinople in 1814. The Ottomans were aware of the fortune Bouboulina had inherited from her husband and were seeking a premise to seize it in 1816. The Ottomans argued that Bouboulis' assets should be forfeited since he had fought on the Russian side during the last Russo-Turkish war. Bouboulina returned to Constantinople in 1816 to argue her case, enlisting the help of the Russian ambassador and the Valide Sultan. The latter was able to convince the Ottoman officials to allow Bouboulina to retain her property. Greek War of Independence Bouboulina was visited by nationalist priest Papaflessas in 1818. Following her meeting with Papaflessas, she made her third visit to Constantinople, Bouboulina joining the Filiki Etaireia, an underground organization that was preparing Greece for revolution against Ottoman rule. She would have been one of a few women, but she is not named in historical members lists. Upon her return to Spetses, she ordered the construction of a ship that was larger than Ottoman regulations would allow. The Ottomans dispatched admiral Hussein to ensure Bouboulina adhered to Ottoman law. Bouboulina proceeded to bribe Hussein, who then signed a report indicating that the ship was a long range Spetsiot trade ship. Agamemnon was armed with 18 cannons and went on to become the first warship in modern-day Greece. Upon the outbreak of the Greek War of Independence, Bouboulina sailed on Agamemnon, which was commanded by her son Yiannis Yiannouzas, to Nafplion, along with another ship commanded by her half brother Manolis Lazarou-Orlov, imposing a naval blockade on the city on 4 April 1821. Bouboulina and Staikos Staikopoulos then appealed to the Spetsiots who dispatched seven more ships to assist in the siege. Bouboulina commanded great respect among the revolutionaries who nicknamed her Kapetanissa (Captain) and Kyra (Lady). On 10 April, the besieged Ottomans exploited the fact that the Greek sentries were celebrating Orthodox Easter, breaking through the siege. Bouboulina then disembarked at Myloi and traveled to Argos on horseback, supplying the local rebels with money and ammunition. In Argos, Bouboulina participated in a conference of local military commanders and kodjabashis, where the Greeks decided to resume the siege of Nafplion. The siege of Nafplion continued until the rebels became aware of Kehaya Bey's force