He distinguished himself as a Russian officer in the campaign of 1814.[1]
In 1821 he took part in the Wallachian uprising under the leadership of his brother Alexandros, that indirectly benefited the Principalities of Moldavia and Wallachia.[2]
The Greek War of Independence
After the failure of the uprising in Wallachia, he went to the Morea (Peloponessus), where the Greek War of Independence had just broken out, as representative of Filiki Etaireia and his brother.
He was one of the most conspicuous of the Phanariote leaders during the early stages of the revolt, though he was much hampered by the local chiefs and by the civilian element headed by Alexandros Mavrokordatos;[1] as a result the organisation of a regular army was slowed and operations were limited.[3] He took part in the sieges of Tripolitsa, Nafplion and the Battle of Dervenakia, securing the Greek dominion in Morea.
On 15 January 1822, he was elected president of the legislative assembly. However, due to the failure of his campaign in central Greece, and his failure to obtain a commanding position in the national convention of Astros, he was compelled to retire in 1823.[4] After the landing of Ibrahim at Morea, he took part in the defence of Naplion in the Battle of the Lerna Mills.
In 1828, he was appointed in the new established regular army by Ioannis Kapodistrias as commander of the troops in eastern Greece. On 25 September 1829, he successfully compelled Aslan Bey to capitulate at the Pass of Petra (Battle of Petra), thus ending the active operations of the war.[4]
Personal life
He was known for an affair with Manto Mavrogenous, who was a Greek heroine of the Greek War of Independence.
Death
He died due to illness in Nafplion on 16 August 1832.
Legacy
The city of Ypsilanti, Michigan, US; founded in 1823, during the Greek struggle for independence; is named after him.[5] A bust of Demetrios Ypsilanti stands between American and Greek flags at the base of the landmark Ypsilanti Water Tower.
Ypsilanti, North Dakota, US, was named by a person from Ypsilanti, Michigan, and is thus also indirectly named after Demetrios Ypsilantis.
Ypsilanti in Talbot County, Georgia, US, was once a relatively important cotton growing centre but “is now (2010) merely a crossroads with a reported five residences."[6]