page_title: Petronius (horse)
section_title: Racing career
hierarchical_section_title: Petronius (horse) / Racing career
caption_attribution_description: Portrait of Archibald Hamilton, 9th Duke of Hamilton (1740-1819)
context_page_description: Petronius was a British Thoroughbred racehorse and sire best known for winning the classic St Leger Stakes in 1808. After winning the St Leger as a 20/1 outsider, Petronius remained in training for two more years, winning two races at York in 1809 and the Union Cup at Preston in 1810. He retired from racing after winning five races from eleven starts. He had little success as a breeding stallion and died in 1823 at the age of eighteen.
caption: The Duke of Hamilton, who bred and owned Petronius
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