Uncertain portrait. Some claim this is Mary Tudor, sister to Henry VIII, wife of king Louise of France (so Queen of France), then wife to Charles Brandon. Some claim this was painted in 1544. Supposedly painted by Joannes Corvus (Johannes Corvus?). Possibly dated from late 1520s-early 1530s based on length of jeweled frontlet of English bonnet. Possible alterations to painting, overcleaning or overpainting. Many questions!!