Niklaus Wirth
Niklaus Wirth designed several of the most influential computer languages including "Pascal" and "Modula". In 1984, he won the Turing Award, generally recognized as the highest distinction in computer science, "for developing a sequence of innovative computer languages"
My first computer language was FORTRAN. FORTRAN was a workhorse in its time, and it is still in use today. "Pascal" was my second language, and it was much more elegant. I coded almost exclusively in Pascal (with some 68000 assembly) when I began working in neural networks between 1985 and 1990. In later years, C, C++, Java, and Python would eventually eclipse Pascal.
Niklaus Wirth passed away earlier this year on January 1st, 2024.