The title "King of Greece" refers to the monarch who ruled over the Kingdom of Greece from its establishment in 1832 until the abolition of the monarchy in 1974. The first king was Otto of Greece, a Bavarian prince, who was chosen to lead the newly independent nation. The monarchy faced various challenges, including political instability and foreign interventions. The last king was Constantine II, who reigned from 1964 until the monarchy was abolished following a referendum in 1974. The royal family has since lived in exile, and Greece is now a parliamentary republic. The legacy of the monarchy remains a topic of interest in Greek history.