Therefore , it was at Patras that the Revolution is held to have officially began on March 25 , 1821 in the chapel of Agios Georgios .
On March 25 the revolutionaries declared the Revolution in the square of Agios Georgios in Patras .
It was at Patras that the Revolution is held to have officially began on March 25 , 1821 in the chapel of Agios Georgios .
On March 25 the revolutionaries declared the Revolution in the square of Agios Georgios in Patras .