Crispin is the Catholic patron saint of cobblers, tanners, and leather workers. Born to a noble Roman family in the 3rd Century AD, Crispin and his brother St. Crispian fled persecution for their faith, winding up in Soissons, where they preached Christianity to the Gauls and made shoes by night. Their success attracted the ire of Rictus Varus , the governor of Belgic Gaul , who had them tortured and beheaded c. 286. In the 6th Century, a church was built in their honor at Soissons.

St. Crispin's feast day is October 25th. Crispin is perhaps best known for lending his name to the famous speech given by the eponymous king in Shakespeare's Henry V before the Battle of Agincourt:

KING. This day is called the feast of Crispian:

He that outlives this day, and comes safe home,

Will stand a tip-toe when the day is named,

And rouse him at the name of Crispian.

He that shall live this day, and see old age,

Will yearly on the vigil feast his neighbours,

And say "To-morrow is Saint Crispian":

Then will he strip his sleeve and show his scars.

And say "These wounds I had on Crispin's day."

Old men forget: yet all shall be forgot,

But he'll remember with advantages

What feats he did that day: then shall our names.

Familiar in his mouth as household words

Harry the king, Bedford and Exeter,

Warwick and Talbot, Salisbury and Gloucester,

Be in their flowing cups freshly remember'd.

This story shall the good man teach his son;

And Crispin Crispian shall ne'er go by,

From this day to the ending of the world,

But we in it shall be remember'd;

We few, we happy few, we band of brothers;

For he to-day that sheds his blood with me

Shall be my brother; be he ne'er so vile,

This day shall gentle his condition:

And gentlemen in England now a-bed

Shall think themselves accursed they were not here,

And hold their manhoods cheap whiles any speaks

That fought with us upon Saint Crispin's day.

(Apparently, Shakespeare had the identities of Crispin and his brother Crispian slightly confused.)

Also, the English town of Northampton has an annual street fair named for St. Crispin.