Brunette(B) Kepler worked out his planetary motions after he "inherited" redhead
(Rd) Tycho Brahe's papers.

B Pope John Paul II admitted Rd Galileo was right
after all, 500 years later, now that it doesn't matter.

B Gregor Mendel became interested in genetics after reading Rd Charles Darwin's book. Of course, Mendel's BC boss burned most of his papers upon discovering them.

B Lyndon Baines Johnson became President after Rd John F. Kennedy was shot in LBJ's home state.

Lately, most enduringly popular world heroes have been boxer Muhammed Ali and singer Elvis Presley.
Maybe we've gone far enough down that road.