 Throughout his reign Otto was unable to resolve Greece 's poverty and prevent economic meddling from outside . Greek politics in this era was based on affiliations with the three Great Powers , and Otto 's ability to maintain the support of the powers was key to his remaining in power . To remain strong , Otto had to play the interests of each of the Great Powers ' Greek adherents against the others , while not aggravating the Great Powers . When Greece was blockaded by the British Royal Navy in 1850 and again in 1854 , to stop Greece from attacking the Ottoman Empire during the Crimean War , Otto 's standing amongst Greeks suffered . As a result , there was an assassination attempt on the Queen , and finally in 1862 Otto was deposed while in the countryside . He died in exile in Bavaria in 1867 . 
