Bulgaria has reached its cultural apogee during Simeon's reign, becoming the literary and spiritual center of Slavic Europe.

In this respect, Simeon has continued his father Boris' policy of establishing and spreading Slavic culture and attracting noted scholars and writers within Bulgaria's borders.

It is in the Preslav Literary School and Ohrid Literary School, founded under Boris, that the main literary work in Bulgaria has been concentrated during the reign of Simeon.

By the close of Simeon’s five-year campaign against the Empire, the Bulgarian khan has conquered most of Serbia, advanced to the walls of Constantinople four times, compelled Constantinople to pay him tribute, and driven the Empire’s Magyar allies into the Plain of Hungary.

In the last months of his life, Simeon prepares for another siege of Constantinople despite Romanos' desperate pleas for peace.

He dies of heart failure in his palace in Preslav on May 27, 927.

Byzantine chroniclers tie his death to a legend, according to which Romanos decapitated a statue which was Simeon's inanimate double, and he died at that very hour.

Twice married, Simeon leaves four sons, of whom the second, Peter, succeeds him, with George Sursuvul, the new emperor's maternal uncle, initially acting as a regent.

The long Bulgarian-Byzantine War ends with Simeon's death.

As part of the peace treaty signed in October 927 and reinforced by Peter's marriage to Maria (Eirene), Romanos' granddaughter, and with it an annual tribute.

The existing borders are confirmed, as are the Bulgarian ruler's imperial dignity and the head of the Bulgarian Church's patriarchal status.

This agreement will usher in a period of forty years of peaceful relations between the two powers, a time of stability and prosperity for Bulgaria.