
On 3 October 2026, Greece and Bulgaria formalized an agreement concerning the return to Greece of 48 ecclesiastical treasures removed from religious institutions during the First World War and the transfer to Bulgaria of human remains identified as those of Tsar Samuel (r. 997–1014). The ceremony, held at the Museum of Byzantine Culture in Thessaloniki and attended by Greek Prime Minister Kyriakos Mitsotakis and Bulgarian Prime Minister Rumen Radev, marked a significant moment in the cultural relations of the two neighboring countries. The treasures were physically brought back to Greece, more than a century after their removal in 1917, while the remains attributed to Samuel were transferred to Bulgaria. Yet, beyond the diplomatic symbolism, the agreement raises important historical, archaeological, ecclesiastical, and legal questions. It also brings renewed attention to the wider problem of cultural and religious property removed from Greek institutions during the upheavals of the early twentieth century.


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