Did female nobility of the Tudor period spend much time outdoors? If they were outside did the employ parasols? In their portraits their skin is very fair-certainly no hint of a tan. I'm guessing pale skin was considered a desirable beauty trait.
Would vitamin D deficiency have been a common problem for these women? Even if they were spending some time outside very little skin was exposed-just hands and face and even that might have been limited by the use of gloves or hats.