page_title: Thomas Grey (conspirator)
hierarchical_section_title: Thomas Grey (conspirator)
caption_attribution_description: English: Portchester Castle
context_page_description: Sir Thomas Grey, of Heaton Castle in the parish of Norham, Northumberland, was one of the three conspirators in the failed Southampton Plot against King Henry V in 1415, for which he was executed.
context_section_description: Sir Thomas Grey (30 November 1384 – 2 August 1415), of Heaton Castle in the parish of Norham, Northumberland, was one of the three conspirators in the failed Southampton Plot against King Henry V in 1415, for which he was executed.
caption: Portchester Castle, where the Southampton plot was revealed to King Henry V
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