Complex sentence: His son, Iemasa, received Tokushima Domain as a new landholding from Hideyoshi, and from then until the end of the Edo period, the Hachisuka were the lords of Tokushima.
Split into simpler sentences: His son, Iemasa, received Tokushima Domain as a new landholding from Hideyoshi. From then until the end of the Edo period, the Hachisuka were the lords of Tokushima.