Unfortunately the uprising was doomed to fail.  The patriarch of Constantinople excommunicated Ypsilantis, and the Tsar denounced him and threw him out of the Russian army.  The Tsar then allowed the Ottoman Turks to enter the region and crush the uprising.  One of the many betrayals that the "Orthodox" Russians committed against the Greek people.  

Ypsilantis and his soldiers withdrew to the Carpathian mountains and dug themselves in  at Dragatsani waiting for the Ottoman Turks to arrive.  The Ottoman Turks sent three armies and upon meeting Ypsilantis on the 7th of June 1821 a very bloody confrontation occurred.  The result was a disaster for the Greeks and only one hundred survived.  

Hoping to save himself Ypsilantis fled to Austria, but Austria was an ally of the Ottoman Turks.  They captured Ypsilantis and put him in the cruel Mugats prison.  As a result of his sorrow and torture he received at the hands of the Austrians he died one year later at the age of 38.

The other Greek princes formed companies to escape from the Ottoman Turks, they all suffered similar disasters to Ypsilanti.  The Ottoman Turks told the prince Farmakis  if he surrendered they would led him and his people go.  Farmakis and his soldiers accepted the offer and surrendered to the Ottoman Turks believing that they would keep their promise.  The barbaric Ottoman Turks having no honor in combat did not keep their promise and Farmakis' soldiers were all killed.   Farmakis was  then tied up and sent to Constantinople where he was skinned alive upon arrival.

Alexandros and his compatriots sacrifice helped liberate Greece.   The Ottoman Turks fearing the uprising in the north withdrew thousands of soldiers from southern Greece.  Soldiers that if they had been in Greece could have crushed the Greek uprising in the south.  Many believe that without Alexandros sacrifice and the hundreds with him Greece would not have been liberated.