Descent of Edward III to my wife's maternal grandmother, Margarita Rocha Gutierrez and to Queen Elizabeth II

The descent from Cerdic, 1st King of Wessex to King Edward III to Margarita Gutierrez Rocha

1. Cerdic, 1st King of Wessex
2. Creoda
3. Cynric, King of Wessex

Bartholome Rodriguez y Tomasa Ulloa vdo. (both wives related to Dona Petronilla de Gabai/Martin Navarro

I don't know much about them so it is difficult for me to figure out the complexity of their ties to Dona Petronilla de Gabai y Martin Navarro.