The outstanding works on view include a dozen or so 15th- and 16th-century Flemish paintings, regarded as some of the richest in Portugal and rare even in the rest of Europe.
There are quite a few 15th- and 16th-century Flemish paintings on display.
mnli hypothesis: There are quite a few 15th- and 16th-century Flemish paintings on display. premise: The outstanding works on view include a dozen or so 15th- and 16th-century Flemish paintings, regarded as some of the richest in Portugal and rare even in the rest of Europe.