Why did Lady Jane Grey succeed Edward VI of England?
Designation by the dying king's 'Devise for the Succession' — contested from the first day. First cousin once removed — Jane's grandmother Mary Tudor was Henry VIII's sister.
The short answer
Edward VI, dying in 1553, wrote a 'Devise' that set aside his half-sisters Mary and Elizabeth and named his Protestant cousin Jane Grey as heir. Jane was proclaimed queen on 10 July 1553, four days after Edward's death. The designation had no parliamentary backing and collapsed within nine days.
Who they were
How power passed
The Devise reversed the order laid down by Henry VIII's will and the Third Succession Act, which placed Mary and Elizabeth after Edward. Its chief backer, the Duke of Northumberland, had married his son Guildford Dudley to Jane weeks earlier. Jane's claim depended on the Devise being accepted as law; it never was.
Key points
- Named by Edward's Devise, not by statute or by Henry VIII's will
- Proclaimed 10 July 1553; the Privy Council abandoned her by 19 July
- Her husband's father, the Duke of Northumberland, engineered the plan
Related family connections
Sources
- Lady Jane GreyProclamation and fall
- My Devise for the SuccessionEdward VI's document and its legal weakness
Explanation written and reviewed by HistorIQly · reviewed 2026-09-18. Part of the House of Tudor family tree. Background on Wikipedia.
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