Prof. Ihor Ševčenko, one of the most eminent Byzantinists of the last century, died on 26 Dec. 2009, at the age of 87. I had the opportunity to meet him on a few occasions as well as hear papers he delivered at Oxford, Harvard, and Dumbarton Oaks in DC. In my experience, he was always affable, gentle, and honestly interested in what others were doing. His scholarship, while sometimes narrow in terms of method, was wide-ranging and inspiring in its scope. To his great credit, he always insisted on the fundamental value of Classics and Byzantine and Slavic Studies, three subjects that perennially face marginalization in American universities.
Some prominent obituaries:
London Times (by Prof. Cyril Mango)
Harvard Gazette (by Prof. John Duffy)
Boston Globe (also photo above)