Possible Clues:

• Arid, infertile
• Arid of unfertile
• Sounds as if the lord can have no heir
• Desert
• The noble, by the sound of it, had no heir
• There's nothing that's fertile about here in the shed
• Sounds like industrial magnate is unproductive
• To slip up in prohibition is unproductive
• Unable to bear fruit, not fertile
• To speak of nobility is fruitless