What important historical figure was related to Euclid?

Euclid, often referred to as the "Father of Geometry," is primarily known for his work "Elements," which has had a lasting impact on mathematics. While he doesn't have a direct historical figure related to him in a familial sense, his influence can be seen in the works of later mathematicians like Isaac newton and Carl Friedrich Gauss, who built upon Euclidean principles. Additionally, figures like Archimedes and Ptolemy were contemporaries or successors whose work was influenced by Euclid's geometry.