Athanasios Diakos

Athanasios Nikolaos Massavetas or Grammatikos (Greek: Αθανάσιος Νικόλαος Μασσαβέτας-Γραμματικός; 1788 – 24 April 1821) also known as Athanasios Diakos (Greek: Αθανάσιος Διάκος) was a Greek military commander during the Greek War of Independence, considered a venerable national hero in Greece.