The Book of Hours of Leonor de la Vega is a codex of illuminated manuscript on vellum by Willem Vrelant.

The author, Willem Vrelant of Utrecht, was born in 1410 and died in Bruges in 1481.

He was a student of Jan van Eyck, and was active in Flanders, where this book of hours was made, between 1465 and 1470.

The book of hours was named for the poet's sister, Leonor de la Vega, who inherited the codex from her brother.

[3] The manuscript presents a goatskin binding, and is made on parchment folios (202), 19 x 13 cm in size, for a total of 404 pages.