Question: Who is the stepmother of George Stanley, 9Th Baron Strange?
Sentence (from "Thomas Stanley, 1st Earl of Derby"): This did him no harm, however, even after Warwick was toppled from power, and in 1472, with the House of York again occupying the English throne, he married his second wife Lady Margaret Beaufort, whose son, Henry Tudor, was the leading Lancastrian claimant.
Relevant evidence: Yes