Lagoumitzis was born in the village of Hormovo, in modern Albania, then part of the Ottoman Empire; though, his family was originally from the village of Lekli.

[1] His real surname was either Papakyriakos (Παπακυριάκος)[1] or Dalaropoulos (Νταλαρόπουλος), but he was also called Hormovitis (Χορμοβίτης; from Hormovo).

He is mainly known as Lagoumitzis (sapper) due to his successful ability to dig tunnels (Greek: λαγούμια, romanized: lagoúmia) beneath the camps of enemies and blow them up.

During these sieges, Lagoumitzis successfully countermined the Turkish besiegers.

He died in Athens, in 1851; the Greek state paid for his funeral.