Later in 1910 he was promoted to the rank of major and appointed chief of staff of the Minister of War, Nicolae Filipescu.

He was decorated with the Order of Michael the Brave, 3rd class, for the way he led the Border Guard Brigade in the 1916 campaign.

In 1915 he sold one of his estates in Vâlcea County to buy 15 modern machine guns with which he endowed the regiment.

"[4] Instead, the politician Constantin Argetoianu characterized him caustically: "Poor Zizi was a joke all his life and so he will die, but not on the front but in his bed.

[7] In 1936, Gheorghe Cantacuzino led a group of Legionnaires who went to fight in the Spanish Civil War on the side of the Nationalist faction.

[8] After a short stay in Spain, he returned to Romania the same year, leaving only the rest of the group on the front.

[10] The original house, located in a protected area and despite a request to classify the building as a historical monument, was demolished in May 2010 due to dysfunctions between the Culture Department of Bucharest, the National Commission of Historical Monuments, and the Ministry of Culture and Prefecture.