List of Portuguese royal consorts
Portugal had only two queens regnant: Maria I and Maria II (and, arguably, two more: Beatriz for a short period of time in the 14th century; and Teresa, in the 12th century, which technically makes her the first ruler and first queen of Portugal). The other queens were queens consort, wives of the Portuguese kings.
Source: Wikipedia — List of Portuguese royal consorts (CC BY-SA 4.0)