Related Rule
Greece
Practice Relating to Rule 147. Reprisals against Protected Objects
Section C. Cultural property
The Hellenic Navy’s International Law Manual (1995) provides: “In the context of armed conflict, reprisals are prohibited … [a]gainst objects constituting parts of cultural heritage (which have been duly characterized as such, bearing the appropriate distinctive emblem).” 
Greece, International Law Manual, Hellenic Navy General Staff, Directorate A2, Division IV, 1995, Chapter 4, § 7(b).
At the CDDH, Greece, with regard to an amendment sponsored by Greece, Jordan and Spain which read that “historic monuments and … works of art which constitute the cultural heritage of a country … shall not be made the object of reprisals”, 
Greece, Jordan and Spain, Amendment concerning a new Article 47(3) draft Additional Protocol I, CDDH, Official Records, Vol. III, CDDH/III/17/Rev.1, 18 March 1974, p. 213.
stated that “the principle of the prohibition of reprisals incorporated in the amendment only reaffirmed Article 33 [of the 1949 Geneva Convention IV]”. 
Greece, Statement at the CDDH, Official Records, Vol. XIV, CDDH/III/SR.15, 7 February 1975, p. 118, § 6.