During Theodore's minority, his father Emperor Manuel II stayed in Morea and supervised its administration and defense, rebuilding the Hexamilion wall across the Isthmus of Corinth.
Durante a minoría de Teodoro, o seu pai, o emperador Manuel II quedou en Morea e supervisou a administración e a defensa, reconstruíndo a muralla de Hexamilion a través do istmo de Corinto.