Compact tree of Sir Admiral John Howard
King John Lackland 1166–1216 | |||||||||||||
Richard “King of the Romans” Plantagenet 1209–1272 | Richard “Earl of Cornwall” de Cornwall 1252–1280 | Joan de Valletort 1214–1267 | |||||||||||
Countess Isabella of Gloucester 1173–1217 | |||||||||||||
Sir John Howard 1276–1331 |
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Joan de Cornwall 1286–1342 | |||||||||||
Joan St. Owen 1260–1316 | |||||||||||||