15th-century mathematicians by nationality

The 15th century was a time of significant development in mathematics, particularly due to the Renaissance and the revival of classical knowledge. Here are some notable mathematicians from that period, organized by nationality: ### Italian - **Leonardo of Pisa (Fibonacci)** (c. 1170–1250): Although he lived earlier than the 15th century, his works, particularly the *Liber Abaci*, significantly influenced mathematics during the Renaissance period.