titular

Existing in name only.

“the nominal (or titular) head of his party”

Of or relating to a legal title to something.

“titulary rights”

Of or bearing a title signifying status or function.

“of titular rank”

Of or pertaining to the title of a work of art.

“performed well in the titular (or title) role”

“the titular theme of the book”

Of or associated with or bearing a title signifying nobility.

“titular dignitaries”