Yes, he had a wife. She was the Lichchhavis princess. He then had a son who was his sucessor. Samudragupta.
The Lichchhavi period, which flourished in Nepal from the 3rd to the 9th century CE, is often referred to as a golden period due to its significant advancements in art, architecture, and trade. This era saw the construction of remarkable temples and stupas, showcasing exquisite craftsmanship and the influence of Buddhism and Hinduism. Additionally, the Lichchhavis established a prosperous economy and a relatively stable political environment, fostering cultural and intellectual growth. Their legacy is still evident in Nepal's cultural heritage today.