Your costume suggestion
Clad in a long, tight-fitting red dress with embroidered gold belt, you exude dignity and authority - just as the Queen of Scotland ought. You wear a tartan sash, a stunning gold necklace to accentuate your cleavage and, of course, a crown.
When you were a young chambermaid, your mother was forever putting you forward for beauty pageants. You hated all the dressing up (preferring black lace over anything else) but it’s how you met your husband to be, Macbiff. As a formidable power couple, you’ve quite literally carved your way through the ranks and into the monarchy. Actually, both you and Macbiff stabbed the old king in bed in your castle. A modus operandi that’s looking a bit suspicious right now…
INTRODUCE YOURSELF AT THE START OF THE GAME BY READING THIS
I am Lady Macbiff of the clan Macbiff, and the wife of King Macbiff - last time I check-eth. Alas, poor Yorick, I knew his smell. He shall not be missed. Why King Macbiff wanted him around the castle I shall not know. Yorick was our jester, and an odious one at that. Flowers wilted in his presence. The stench is not on my hands though - Macbiff and I retired to bed early, plotting and jotting.