With six bedrooms, the 1910 home also features an indoor basketball court, wine cellar, elevator, a one-bedroom au pair suite and top-level terraces with views of the San Francisco Bay and Golden Gate Bridge.

WSJ: Huguette Clark's New York Apartments Sell | Private Properties

Leone, whom colleagues described as "a talented lawyer, " is leading the case against Louise Woodward, the 19-year-old au pair from England who is charged with first-degree murder in the February death of 8-month-old Matthew Eappen.

CNN: Cross-examination of nanny called 'minefield' for prosecution