Recently, after the curators of the Palazzo Pitti ordered a routine cleaning and inspection of Raphael's La Donna Velata (the Veiled Woman), they discovered some significant and off-putting under-painting through the use of x-rays and ultraviolet techniques.
Amazed at what they found--a bizarre portrait of a bearded Michelangelo, they began to come up with a reason for this horrific image...
As many historians will tell you, Michelangelo and Raphael had a combative relationship and worked on different parts of the Vatican at the same time. As is well documented, Raphael painted the frescoes on the walls and ceiling of the Pope’s private library while Michelangelo was (as Raphael saw it) "laying down on the job" while painting the Sistine chapel ceiling. Raphael procured a key to the Sistine Chapel and had his spy secretly sneak in to check out Michelangelo’s progress. At times, Raphael himself would spy on the Master and record every detail of what he saw in his Eidetic memory.
Michelangelo later accused Raphael of plagiarism and claimed "everything he knew about art he got from me." Michelangelo hated Raphael and spread nasty rumors about him. The two were bitter rivals to the end.
With this new discovery, art experts now theorize that Raphael hatched his plan to get back at him... to paint the most ugly and grotesque portrait of a bearded Michelangelo underneath one of his own masterpieces, the Veiled Woman, knowing full well that someday, somehow, in the distant future, art historians would uncover his monumental joke upon the Master... once and for all times, shaming Michelangelo (who was rumored to be gay) as a cross-dressing, bambolina-hugging monstrosity--even if the shaming occurred after they were both in their graves.