Answer
Nonito Donaire and Manny Pacquiao are two boxers who have held world championships in three consecutive decades. Donaire won his first world title in 2007 and his most recent title in 2019. Pacquiao won his first world title in 1998 and his most recent title in 2019. Donaire and Pacquiao are the only two boxers in history to have held world championships in three consecutive decades.