 As of 2012, the collection was the most visited art gallery in Venice and the 11th most visited in Italy.Since 1992, Peggy Guggenheim's grandson, Sandro Rumney, together with his children and some cousins, have raised several disputes with the Solomon R. Guggenheim Foundation.The disputes concern, in part, the difference in language between Guggenheim's unconditional 1976 deed of gift to the foundation, a 1969 letter, and a 1972 version of her will.