As the nation and world celebrated the memory of the Rev. Martin Luther King Jr.'s "I Have a Dream" speech, his two sons and daughter were caught up in their latest fight over control of their father's legacy.

King's estate, which is run by his sons, said in a court filing Aug. 28 that the nonprofit devoted to his memory, which is run by his daughter, plans to continue using the civil rights icon's memorabilia despite no longer having the license.

The estate says it owns all rights to King's intellectual property and memorabilia and says it licensed those rights to The Martin Luther King Jr. Center for Nonviolent Social Change. The estate says it notified the center the license would be revoked because the center has not maintained the property properly.

Tags: Dexter King, estate, Martin Luther King Jr., Bernice King, King Center, Martin Luther King III, civil rights leaders, king estate