Question: What is the cause of death of Maria Ii Of Portugal's father?
Sentence (from "Maria II of Portugal"): One of the two surviving children born when Pedro was still heir apparent to Portugal, she inherited Portuguese titles and was placed in the line of succession to the former Portuguese throne, even after becoming a member of the Brazilian Imperial Family, from which she was excluded in 1835 after her definitive ascension to the Portuguese throne.
Relevant evidence: No