Athanassios Nicholas Yiannopoulos ("Thanassi" to his friends and "Yippy" to his students) passed on February 1, 2017, surrounded by family. He was born on March 13, 1928, in Thessaloniki, Greece, after his father Nicholas Lingas Yiannopoulos left a remote mountain hamlet in the southern Peloponnese to join the army and subsequently married Areti Albanos of Kozani. After finishing law school with highest honors at Aristotle University of Thessaloniki, Athanassios trained to be an infantry reserve officer and interpreter. He eventually served as military secretary for the commander-in-chief, King Paul, before being honorably discharged in 1953. Immediately following, he entered the United States on a Fulbright scholarship to study law at the University of Chicago. After receiving an LLM in 1954, he "fled the cold" to the welcoming sunshine at University of California Berkeley where he eventually earned a Doctorate of Laws. After teaching abroad at the University of Cologne and receiving a second doctorate degree there, he began teaching law at Louisiana State University in Baton Rouge in 1959. Two decades and many stories later he moved to New Orleans and began teaching at Tulane University Law School and continued lecturing through 2016. Since 1969, he served as the yearly editor of West's Pamphlet Edition of the Louisiana Civil Code and authored three volumes of the Louisiana Civil Law Treatise series. He also took great pride in establishing and directing multiple study-abroad programs in his native Greece. Athanassios is survived by his only daughter, Maria, and granddaughters Sophia and Christina Dooley; his first-born son, Nicholas and granddaughter Caroline; his third wife, Mirta Valdes, and their children Alexander (with wife Magda Galitou Yiannopoulos) and youngest son Philip. He is also survived by a sister in Greece, Aspasia Sougaris. The family would like to thank the professional and caring caregivers at Tulane Hospital, as well as his Baton Rouge physicians. Thanassi's publications are numerous and the honors he received were many. In lieu of flowers, please consider donations to Dr. Sartor's prostate cancer research by sending checks made out to Tulane Cancer Center, memo: Sartor Research to 1511 Dufossat, New Orleans, LA, 70115, attn. Dr. Sartor. The details for a ceremony in Baton Rouge to celebrate the life and legacy of Professor Yiannopoulos will be announced at a later date.