Complex sentence: Maria Elena Holly (1935) is former widow of one of the founding fathers of rock and roll, Buddy Holly who owns the rights to Buddy's name, image, trademarks, and other intellectual property.
Split into simpler sentences: Maria Elena Holly (born 1935) is the former widow of one of the founding fathers of rock and roll, Buddy Holly. She owns the rights to Buddy's name, image, trademarks, and other intellectual property.