Despite these difficulties, Constantine I refused to change his policies and was faced with the increasingly clear opposition of the Triple Entente and Venizelists. Thus, on 1 December 1916 the so-called Greek Vespers took place where the Allied soldiers fought against Greek reservists in Athens and the French fleet bombarded the Royal Palace. On this occasion, Helen was nearly killed by a gunfire from the Zappeion. After hearing the gunshots and worried for the life of her father, the princess ran to the gardens of the royal palace but was saved by the royal Garde du Corps which took her back inside the palace.