┌─Henry of Portugal
┌─Afonso I King of Portugal
│ └─Theresa of León
Urraca of Portugal
│ ┌─Amadeus II of Savoy ⇒
│ ┌─Humbert II of Savoy
│ ┌─Amadeus III of Savoy
│ │ │ ┌─William I of Burgundy
│ │ └─Gisella of Burgundy
│ │ └─Stephanie
└─Matilda of Savoy
│ ┌─Guigues II of Albon
│ ┌─Guigues III of Albon
│ │ └─Petronel of Turin
└─Matilda of Albon
└─Matilda