King Constantine I's restoration followed a tumultuous era in Greek politics and history. He had initially abdicated the throne in 1917 under pressure from the Allies during World War I, who opposed his neutrality stance. After his son, Alexander of Greece, died from an infected monkey bite, public sentiment shifted towards restoring the monarchy under Constantine. A plebiscite was conducted, allowing Greek citizens to voice their preference, and the majority favored the king's return. This event was significant not only for the royal family but also for Greece's political landscape in the wake of changing international alliances and domestic unrest.

The plebiscite occurred amid growing national tensions and a desire for stability after years of conflict. Constantine's return marked a shift towards traditional monarchy in Greece again after a brief period of republican sentiment and political strife. His restoration was a pivotal point, reaffirming the monarchy's role and altering the course of Greek politics as it tried to navigate post-war realities, including territorial aspirations, economic recovery, and the consequences of the recent Greek defeat in the Greco-Turkish War.

Following his restoration, Constantine faced numerous challenges, including ongoing divisions within the country regarding alignment with France and Britain versus pursuing a more nationalist agenda. His rule led to both immediate unrest and set the stage for further conflicts, ultimately culminating in the Greek Civil War post-World War II. The implications of his monarchy influenced Greece's political trajectory throughout the 20th century.