Philippa of Clarence's descendants had a strong hereditary claim through Edward III's second surviving son, Lionel of Antwerp, especially because Richard II had no children. Henry IV instead took the throne through John of Gaunt's junior line after forcing Richard's abdication. Edward III's stated settlement passed over Philippa and directed the succession through his surviving sons and their male issue. This creates an apparent inconsistency: Edward III excluded a female line from his English succession while grounding his claim to France in descent through his mother Isabella.
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Philippa of Clarence and the disputed succession of 1399
Philippa of Clarence's female line complicates Henry IV's accession and Edward III's claim to France through his mother.