OLIVIA HARRISON — $275 MILLION
George Harrison’s wife, Oliver Harrison, is a British-Mexican author who, much before achieving success as a writer, used to work as a secretary for A&M Records. That is how she met George Harrison, one of the four band members of the world-famous The Beatles. She was the co-producer for Martin Scorcese’s documentary, George Harrison: Living In The Material World, and the producer for Concert For George. All those ventures must have added quite a huge sum to her already impressive wealth, and that has allowed her purchase a compound in the Whitsunday Islands of Australia.