[header] How to obtain an eu passport as a us citizen [title] Examine your family tree. [step] One of the paths to citizenship in an eu country is to look at your family tree. You may already have a claim to citizenship based on where one or both of your parents or grandparents were born. 
The rules about family heritage citizenship vary from one country to another, so make sure that you check the rules of your ancestral country. [substeps] For example, if you were born in wedlock between jan.