draconian

Definitions:

Belonging to the constellation Draco; of great severity.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)

Usage examples:

Turlough was unquestionably somewhat Spartan in his severities, if not Draconian in his administration of justice.
- An Illustrated History of Ireland from AD 400 to 1800 by Mary Frances Cusack
The Collector, however, was inexorable, and indeed he had no power to mitigate the Draconian law of sale.
- Tales of Bengal by S. B. Banerjea
But what is more important still is that probably the vast multitude of the moneyed vulgar whose exclusiveness is supplied to them in such a place dictate, tacitly at least, the Draconian policy of the management.
- Imaginary Interviews by W. D. Howells