Why did Lord Byron become a Greek national hero?

Lord Byron became a Greek national hero due to his dedicated support for the War of Greek Independence against Turkish rule.1

In 1823, Byron committed himself to the cause by acting as an agent for the London Committee, contributing £4,000 of his own funds to prepare the Greek fleet for service. Upon arriving in Greece, he worked to unify disparate Greek factions and took personal command of a brigade of Souliot soldiers.12

His commitment culminated in his death from a fever in Missolonghi on April 19, 1824, at the age of 36. Because he sacrificed his resources, time, and ultimately his life for the cause, he was deeply mourned and became a lasting symbol of disinterested patriotism in Greece.21