Where was The Portrait filmed?
2017 film
The Portrait (2017) was filmed in Intramuros and Taal, 2 places named in its Wikipedia article's Filming section, in the Philippines. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Wikipedia's Filming section
Wikipedia’s Filming section names 2 places. Each links to the sentence that says so.

