President who was imprisoned for 27 years

• "___: Long Walk to Freedom" (... + first 3)
• 1-Across's successor
• South African civil rights pioneer Nelson
• Nobelist Nelson
• President in the 2009 film "Invictus"
• Name inscribed in a medal, prepared for old statesman
• 1993 Peace Prize co-winner

Wikipedia Word definitions in Wikipedia
' Mandela ' is a genus of moths of the Noctuidae family.