Onassis was a Turkish-born Greek financier and shipping magnate who pioneered the use of oil supertankers. He purchased his first ships in the early 1930s, and, over the next couple of decades, his fleet grew to be larger than the navies of many countries. He also founded Olympic Airways, the Greek national carrier. Onassis’s first marriage, to Athina Livanos, daughter of shipping magnate Stavros Livanos, was ended by his famous affair with opera diva Maria Callas. Whom did he marry in 1968? Discuss