Panagiotis Anagnostopoulos (1790-1854) was a founding member of the Society of Friends, a fighter of the 1821 revolution and a politician. He was born in Andritsaina around 1790 from a poor family. In 1818 he emigrated with his family to Smyrna. He studied in Istanbul. He then settled in Odessa, where he worked in the shop of Athanasios Sekeris and came into contact with Skoufas, who introduced him to the Society of Friends. As a member, Panagiotis Anagnostopoulos initiated important members of the Society, and he undertook important activities in Odessa, Wallachia and Italy, where he came into contact with the Pisa Circle.

He fought alongside Kolokotronis and Anagnostaras in the revolution of 1821. The negotiations for the capture of Tripolitsa, in which he took part, made him a great political figure. In the Third National Assembly he refused to sign the resolution for English protection. In 1828 he was appointed by Kapodistrias as prefect of Ilia and later he took other political positions such as governor of Euboea.

In 1834 the historian Ioannis Filimon published the “Essay on the History of the Society of Friends”, mentioning Skoufas-Chakalov-Anagnostopoulos as the first trio of the Society.
Panagiotis Anagnostopoulos died in 1854 in Athens from cholera transmitted by the Anglo-French army of occupation. In 1884 his name was given to a central street in Kolonaki.