By 422 the Western Roman government...
In 427 the Western Roman empress...
Taking advantage of the Western...
Following their capture of Carthage,...
In response to the Vandal capture of...
By the time of his death in 448,...
In July 450 the Eastern Roman...
Angered by the refusal of both the...
Following their sack of Rome (455),...
Taking advantage of the instability...
