Gábor Szegő was a Hungarian mathematician known for his significant contributions to the fields of analysis and mathematical physics. Born on March 20, 1895, he made notable advancements in areas such as orthogonal polynomials and functional analysis. His work laid the groundwork for many modern mathematical theories. Szegő is perhaps best known for the Szegő theorem, which pertains to the properties of analytic functions and their zeros. He also contributed to the study of Toeplitz matrices and moment problems, influencing both theoretical and applied mathematics. Szegő passed away on August 7, 1985, leaving a lasting legacy in mathematics.