Mary Kennedy, the estranged wife of Robert F. Kennedy Jr., died of asphyxiation due to hanging, a spokeswoman for the Westchester County medical examiner said Thursday.
Few details of Mary Kennedy's death were immediately available.
The Bedford Police Department confirmed Wednesday that 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.
"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," a statement by the husband's family said.
"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," her family said in a statement.
Mary Kennedy was 52.