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Indomitable Collection
Jerónimo de Ayanz
This collection is based on inspirational people who had the restlessness to delve deeper into things, the ingenuity to discover treasures in the everyday and the courage to promote critical thinking.
In our first title we present Jerónimo de Ayanz: poet, musician, cosmographer and inventor, who patented and used the steam engine 100 years before the industrial revolution.
Collaborators
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© Text: TWF / Vanessa Lizarralde
I have always thought of Jerónimo de Ayanz as an engineer ahead of his time, whose genius remained in the shadows because he did not find the necessary support to transcend. We publish this story with the hope that his legacy will take its rightful place.
![](https://tw-group.com/wp-content/uploads/2025/01/Llonis-circular-1.jpg)
Chairman TW Group
Carlos Llonis
Infinitely children
This collection has been created for adults and children alike to be captivated by the magic of the drawings, the details and the content. A project designed to awaken the interest of minds that seek to go beyond.
Other indomitable
Jerónimo de Ayanz will be followed by other leading Navarrese figures: SANTIAGO RAMÓN Y CAJAL, LA REINA TODA, BLANCA DE NAVARRA and JULIÁN GAYARRE.
Godfather, godmother
Each character will have a godfather or godmother, chosen by the foundation's board of trustees for spreading universal values through their knowledge, actions and way of life.
Rigour and depth
Our stories are based on the rigour of the content. In this sense, we provide references that invite you to delve deeper and we collaborate with universities and institutions.
![](https://tw-group.com/wp-content/uploads/2025/02/Archivo_general_Simancas-1.jpg)
General Archive of Simancas
Patent steam engine
The Privilege of Invention was a legal instrument developed in Spain, from the end of the 15th century, to protect inventors, similar to today's patents. Philip III signed a patent in 1606 for a steam engine devised by Ayanz to dewater the mines. It is registered and filed in the Simancas castle (Valladolid, Spain).
![](https://tw-group.com/wp-content/uploads/2025/02/Palacio_Guendulain-1.jpg)
Guenduláin Palace
The home of Jerónimo de Ayanz
The house where Jerónimo de Ayanz was born still stands majestically in the landscape of the Camino de Santiago, near the ascent to the Alto del Perdón. Although in a state of abandonment, its imposing presence allows us to imagine our hero imagining adventures and problem-solving inventions.
I hope that by reading this story you will feel that you too can be brave, persevere and bring your own ideas to life.
![](https://tw-group.com/wp-content/uploads/2025/01/Catalan-circular.jpg)