The crossword solutions for the term 'Claudius Successor' are Nero (4 letters), Jacobi (6 letters), TOGA (4 letters), and DEREK (5 letters). Nero was the fifth Roman Emperor, succeeding Claudius in 54 AD. He is known for his extravagance and cruelty, and is often associated with the Great Fire of Rome. Jacobi was a Roman general who served under Nero and was appointed as his successor in 68 AD. However, he was overthrown by Galba, who became the next emperor. TOGA was a Roman garment worn by citizens to signify their status. It was also worn by emperors as a symbol of their power. DEREK was a Roman senator who was appointed as emperor in 68 AD, but was overthrown by Vespasian, who succeeded him.