
Castle by David Macaulay, 1977.
Castle is one of David Macaulay’s books about historical architecture, and like his earlier book, Cathedral, it has detailed and realistic drawings to explain each step in the building process.
The castle in the story is fictional, but it’s based on real castles built by English lords during the conquest of Wales, circa 1277 to 1305. The process for constructing the castle and the military strategy behind it are historically accurate. The English, under King Edward I, used a strategy of establishing permanent towns and castles in Wales to dominate the Welsh. The construction of these castles and their accompanying towns took years, but it was part of a long-term political and military strategy that actually aimed at avoiding direct armed conflict. The purpose of the castles and towns was not only to support the occupying English forces and settlers, but also to provide economic centers that the Welsh would also find beneficial. The idea was that the Welsh, while initially opposed to the interlopers, would eventually come to rely on the presence of the new towns for business and trade and not want to force the newcomers out. This strategy is in keeping with the nature of castles themselves because they are defensive structures, designed for holding off attackers in order to maintain territorial control, shielding the people within the castle so they cannot be forced out. The fictional castle in the story is built with a fictional town called Aberwyvern and belongs to a fictional nobleman, Lord Kevin.
The beginning of the book explains the military strategy of Edward I and how he appointed noblemen to build castles in Wales. When choosing the site for a castle, they would take into account the natural landscape and its defensive capabilities. For example, Lord Kevin’s castle will be built on a high outcrop on the edge of a river. The high ground and the surrounding water will make the castle harder to attack.

The book shows a plan of the castle that will be built and explains the different craftsmen who will be working on the construction, along with the tools they will use. The book then describes the various stages of construction, beginning with the preparation of the site and the digging of a moat that will separate the section of rocky outcropping where the castle will be built from the land around it, where the town will be located. The moat is important because it provides an extra defensive feature.

My favorite parts explain the living quarters of the castle. People think that castles must have been uncomfortable with bare stone walls, but actually, the walls are only bare in ruined castles that were exposed to the elements over time. When a castle was inhabited, the walls were covered with plaster. The plaster would be painted and/or hung with tapestries for decoration. Reeds and nice-smelling plants would cover the floors as a kind of carpeting, and the plants would be swept out and replaced regularly.

The castle and town take years to finish, and the pictures show how they look at each stage of construction, both in aerial view and up close.


Toward the end of the book, King Edward visits the castle and warns Lord Kevin that there have been some Welsh uprisings. Lord Kevin and his people make sure that they have enough food and supplies to last through a siege, and the following year, the castle’s defenses are put to the test when they do have to withstand a siege.

Eventually, the Welsh attackers are forced to retreat when they are unable to take the castle and they receive word that more English forces are coming.
Over time, the community includes people of Welsh and English descent, living side-by-side, and the town extends beyond the original town walls. The town walls are no longer necessary for defense. By that point, the castle itself is mostly neglected, and people sometimes scavenge stones from it for other buildings.
This book is a Caldecott Honor Book. It is available to borrow and read for free online through Internet Archive (multiple copies). There is also an animated film version of this story, which is available online through Internet Archive.








