Crispinian is a name associated with the Christian martyr Saint Crispin, who, along with his brother Saint Crispinus, is celebrated for their dedication to spreading Christianity in the Roman Empire. They are often remembered for their unwavering faith and the sacrifices they made, ultimately leading to their martyrdom around the 3rd century. The feast day of Crispinian is observed on October 25, coinciding with the famous Battle of Agincourt, where the English army, led by King Henry V, famously rallied under the banner of Saint Crispin. This connection highlights the enduring legacy of Crispinian in both religious and historical contexts.