A more thorough explanation:

M.S.P.

m.s.p.abbr. MORTUUS SINE PROLE.

This Latin phrase translates to "dead without offspring."

1. John passed away without any children, so his estate was distributed among his siblings and parents according to the laws of intestacy. His death certificate listed the cause of death as M.S.P.

2. The royal family was concerned about the possibility of an M.S.P. scenario, as the heir to the throne had not yet produced an heir of their own.

These examples illustrate the use of M.S.P. to indicate that someone has died without any children or descendants. It is often used in legal or genealogical contexts to describe the lack of heirs or potential heirs.