( CNN ) -- Mary Kennedy , from whom Robert F. Kennedy Jr. filed for divorce in 2010 , is dead , an employee of the Westchester County , New York , medical examiner 's office said Wednesday . Mary Kennedy 's funeral set for Saturday . The employee , who declined to give his name , told CNN he would provide no further details about the manner and cause of death . Kennedy was 52 . The family released a statement saying , `` We deeply regret the death of our beloved sister Mary , whose radiant and creative spirit will be sorely missed by those who loved her . Our heart goes out to her children who she loved without reservation . '' Mary Kennedy 's family blasts stories on her death . The Bedford Police Department earlier confirmed they were investigating a possible unattended death at an address owned by Robert F. Kennedy Jr . Authorities found a deceased individual inside `` an out building '' on the property , police said in a statement . Regarding her marital status at the time of her death , Mary Kennedy was n't divorced from Robert F. Kennedy Jr. , her family attorney , Kerry A. Lawrence , told CNN . Mary Richardson Kennedy was `` a tremendously gifted architect and a pioneer and relentless advocate of green design who enhanced her cutting edge , energy efficient creations with exquisite taste and style , '' Robert F. Kennedy 's family said in a statement . Mary Kennedy : 'Green ' designer , wife of Robert F. Kennedy Jr. She advocated finding a cure for food allergies and asthma and was a co-founder of the Food Allergy Initiative , which is the world 's largest private source of funding for food allergy research , Robert F. Kennedy Jr. 's family said . `` It is with deep sadness that the family of Robert F. Kennedy , Jr. mourns the loss of Mary Richardson Kennedy , wife and mother of their four beloved children . Mary inspired our family with her kindness , her love , her gentle soul and generous spirit , '' the husband 's family 's statement said . The couple married in civil ceremony in 1994 when Mary Richardson , a designer , was six months pregnant , according to the Westchester County Journal News . One month prior to the wedding , Robert F. Kennedy Jr. divorced his first wife , Emily Black , the mother of his two oldest children , the newspaper reported . Robert F. Kennedy Jr. , a prominent environmental lawyer who 's a professor at Pace Law School in White Plains , New York , is the third of 11 children born to Ethel and Sen. Robert F. Kennedy , who was assassinated when campaigning for the Democratic presidential nomination in 1968 . Details of the couple 's private lives were exposed after Robert F. Kennedy Jr. filed for divorce in Westchester County on May 12 , 2010 . The next evening , according to police records , Bedford police responded to a 911 call . When police arrived at the Kennedy residence they found the couple in an argument over taking their four children to a carnival at St. Patrick 's School . According to a `` domestic incident '' report filed by the officer on the scene , `` Mr. Kennedy stated that his wife was intoxicated and was acting irrational so he took the children to the carnival to remove them from the situation . '' No one was injured , the report said . Two days later , Mary Kennedy was arrested for driving while intoxicated . At the time , Bedford Police Lt. Jeff Dickans told CNN that Mary Kennedy was arrested around 9:15 p.m. on May 15 , 2010 . Dickans said that a Bedford police officer saw Kennedy 's 2004 Volvo swerving onto the curb of Greenwich Road in Bedford and asked her to pull over . Kennedy had slurred speech , and a blood-alcohol content above 0.08 percent , the legal limit in New York . She was charged with driving while intoxicated . Kerry Lawrence , Mary Kennedy 's family attorney , said the case resulted in a reduction to a violation , the criminal charge was dismissed and her driver 's license was suspended for 90 days . A second arrest occured in August of the same year in the town of Pleasant Valley , in which she was charged with driving while impaired by prescription drugs , Lawrence said . Those charges were dismissed completely in July 2011 because all the drugs were prescribed and taken as her physician advised , the attorney said . As a designer , Mary Kennedy specialized in green architecture , and in a book entitled `` Kennedy Green House '' and co-authored by Robert F. Kennedy Jr. , he describes how he and his wife restored their flooded , black-mold-infested home into an eco-friendly residence . In the book , her husband wrote that Mary Kennedy had worked for the design firm Parish-Hadley and worked on the renovation of the Naval Observatory in Washington , the official residence of the U.S. vice president . `` We know from a history of this family , it 's very hard being a Kennedy , either being a blood Kennedy or being married to one , '' Laurence Leamer , a Kennedy biographer , told CNN .
NEW : She was ` ` a passionate and relentless advocate of green design , '' RFK Jr. 's family says . ` ` It 's very hard being ... a Mary Kennedy or being married to one , '' biographer says . Mary Kennedy was n't divorced from Robert Kennedy Jr. , his attorney says . Robert F. Kennedy Jr. filed for divorce from her in June .