replace_dict = {'a':['â','ä','á'],
                'e':['ê','ë','é'],
                'i':['î','í'],
                'o':['ô','ö','ó'],
                'u':['ú','û',],
                ' ':['-']
}
for new_char in replace_dict.keys():
    for old_char in replace_dict[new_char]:
        lotr_names = lotr_names.replace(old_char, new_char)