Sedulius also wrote to other prominent figures of his time , including Empress Ermengarde , King Louis , and Charles the Bald .
He would become so fond of Bishop Hartgar that after the man 's death , Sedulius wrote a lament in his honour .
Sedulius also wrote to other prominent figures of Sedulius ' time , including Empress Ermengarde , King Louis , and Charles the Bald .
He would become so fond of Bishop Hartgar that after the man 's death , Sedulius wrote a lament in his honour .