Holinshed's Chronicle 1548. 16 Jan 1549. The sixteenth of Ianuarie, sir Thomas Seimer (age 41) baron of Sudleie, lord admerall, and brother to the duke of Summerset lord protector, was arrested and sent to the tower, and after by authoritie of parlement he was attainted, and the twentith of March next insuing, in the third yeare of this kings reigne beheaded at tower hill. Moreouer in this parlement, the vse of the masse was clearlie prohibited, and a booke for the vniformitie of diuine seruice, and right administration of the sacraments, was set foorth and established.

On 16 Jan 1549 Thomas Seymour (age 41), the King's (age 11) uncle, was caught trying to break in to the King's (age 11) apartments at Hampton Court Palace, Richmond [Map]. He entered the privy garden and awoke one of the King's pet spaniels. In response to the dog's barking, he shot and killed it. He was arrested and taken to the Tower of London [Map].

Edward Seymour 1st Duke Somerset (age 49) was arrested on various charges, including embezzlement at the Bristol mint.

After 16 Jan 1549 William Sharington (age 54) was arrested and charged with coining base money, clipping, and other frauds. He confessd and was attainted forfeiting his landed estates and being ejected from his seat in Parliament.

On 18 Jan 1549 agents were sent to interrogate co-conspirators including Princess Elizabeth (age 15). The regency council was sure of her complicity with Thomas, and sought to bully an easy confession from her. She was interrogated for weeks.

On 22 Feb 1549 Thomas Seymour 1st Baron Seymour (age 41) was charged with thirty-three charges of treason; found guilty.