Kara Kennedy, daughter of Teddy, dies

WASHINGTON - AUGUST 12: U.S. President Barack Obama (R) presents the Medal of Freedom to Kara Kennedy on behalf of her father, Sen. Edward Kennedy (D-MA), during a ceremony in the East Room of the White House August 12, 2009 in Washington, DC. Obama presented the medal, the highest civilian honor in the United States, to 16 recipients during the ceremony. (Photo by Chip Somodevilla/Getty Images) *** Local Caption *** Kara Kennedy;Barack Obama
Chip Somodevilla

BOSTON - Kara Kennedy Allen, the only daughter of the late Senator Edward Kennedy, has died.

A family friend confirmed to CBS Station WBZ that the 51-year-old Kennedy passed away, after reportedly suffering a heart attack Friday evening.

Kennedy Allen, a Tufts University graduate, battled lung cancer in the past, but her cancer had been in remission since 2003.

In 2009, she accepted the Medal of Freedom on behalf of her father, who was home battling cancer.

She was on the board of national trustees at the John F. Kennedy Presidential Library.

Kara had two brothers: Ted Kennedy Jr., and former Rhode Island Rep. Patrick Kennedy.