Was Shane Mosley Ever The Lineal Welterweight Champion?

the lineal champion does not have to be the unified champpion. the unification rule to re establish lineage only applies when the lineal champion vacates the title.

the strange exception is currently juan ma marquez. who became lineal at 135 by beating casamayor, who was stripped of the belt, but was never beaten in the ring.

 

The whole concept of the lineage is a fighter can only lose his title in the ring. Losing titles due to boxing politics is irrelevant.

Mayweather can still call himself the champion, tho it's a shakey claim due to his retirement, however brief it was.