Loyalty or Filial Piety (忠と孝のはざまで) - S1.E43

Narichika, who has been exiled by Kiyomori, dies from starvation. Shigemori becomes worn down by the passing of his brother-in-law and from the considerations shown for the cloistered Emperor Go-Shirakawa. Around the same time, Kiyomori learns of Tokuko's pregnancy and prays for the safe delivery of the baby. Tokuko finally gives birth to a boy, the son of Emperor Takakura, who later becomes known as Emperor Antoku. In Izu, Yoritomo and Masako are trying to get permission for their marriage from Masako's father Tokimasa.