We're Royals!!!!

Well, on Dad's side anyway. I've traced the Williams back to 15th century England. We have a grandma with this pedigree:

Catherine of Valois (27 October 1401 – 3 January 1437) was the Queen consort of England from 1420 until 1422. She was the daughter of King Charles VI of France, wife of King Henry V of England, mother of King Henry VI of England, and through her second marriage, to Owen Tudor, the grandmother of King Henry VII of England. Catherine's older sister, Isabella of Valois, was Queen consort of England from 1396 – 1400, as the child bride of King Richard II of England.

Here is the best I can do to capture this lineage. If you look at the stream of names at the top, you'll see how it steps back. Catherine of Valois is the 6th down on the right side.