John Dudley, 1st Duke of Northumberland, was born circa 1502 in London, England, United Kingdom to Edmund Dudley (c1462-1510) and Elizabeth Grey (c1483-1525) and died 22 August 1553 Tower Hill, London, England, United Kingdom of execution by decapitation. He married Jane Guildford (1509-1555) 1525 JL .
|Offspring of John Dudley, 1st Duke of Northumberland and Jane Guildford (1509-1555)|
|John Dudley, 2nd Earl of Warwick (c1528-1554)||1528||21 October 1554 Penshurst Place, Kent, England, United Kingdom||Anne Seymour (1538-1588)|
|Ambrose Dudley, 3rd Earl of Warwick (c1528-1590)|
|Robert Dudley, 1st Earl of Leicester (1532-1588)||24 June 1532||4 September 1588||Amy Robsart (1532-1560) Douglas Howard (1545-bef1608) Amy Robsart (1532-1560) Douglas Howard (1545-bef1608) Lettice Knollys (1543-1634)|
|Mary Dudley (c1532-1586)||1532 Kent, England, United Kingdom||9 August 1586 Chelsea, London, England, United Kingdom||Henry Sidney (1529-1586)|
|Guilford Dudley (1536-1554)|
|Catherine Dudley (1544-1620)|