Kerry (born September 5, 1973) and physician Vanessa Kerry (born December 31, 1976). Alexandra was born days before Kerry began law school. In 1982, Julia asked Kerry for a separation while she was suffering from severe depression. They were divorced on July 25, 1988, and the marriage was formally annulled in 1997. "After 14 years as a political wife, I associated politics only with anger, fear and loneliness" she wrote in A Change of Heart, her book about depression. Thorne later married Richard Charlesworth, an architect, and moved to Bozeman, Montana, where she became active in local environmental groups such as the Greater Yellowstone Coalition. Thorne supported Kerry's 2004 presidential run. She died of cancer on April 27, 2006. Kerry and his second wife—Portuguese-born businesswoman and philanthropist Teresa Heinz, the widow of Kerry's late Pennsylvania Republican Senate colleague John Heinz—were introduced to each other by Heinz at an Earth Day rally in 1990. Early the following year, Senator Heinz was killed in a plane crash near Lower Merion. Teresa has three sons from her marriage to Heinz, Henry John IV, André, and Christopher. Heinz and Kerry were married on May 26, 1995, in Nantucket, Massachusetts. Net worth The Forbes 400 survey estimated in 2004 that Teresa Heinz Kerry had a net worth of $750million. However, estimates have frequently varied, ranging from around $165million to as high as $3.2billion, according to a study in the Los Angeles Times. Regardless of which figure is correct, Kerry was the wealthiest U.S. Senator while serving in the Senate. Independent of Heinz, Kerry is wealthy in his own right, and is the beneficiary of at least four trusts inherited from Forbes family relatives, including his mother, Rosemary Forbes Kerry, who died in 2002. Forbes magazine (named for the Forbes family of publishers, unrelated to Kerry) estimated that if elected, and if Heinz family assets were included, Kerry would have been the third-richest U.S. president in history, when adjusted for inflation. This assessment was based on Heinz's and Kerry's combined assets, but the couple signed a prenuptial agreement that keeps their assets separate. Kerry's financial disclosure form for 2011 put his personal assets in the range of $230,000,000 to $320,000,000, including the assets of his spouse and any dependent children. This included slightly more than $3,000,000 worth of H. J. Heinz Company assets, which increased in value by over $600,000 in 2013 when Berkshire Hathaway announced