A bit more about Lady Langham (Mary Bunce), from
"Mary Bunce was the daughter of James Bunce and Mary Holmedon.2 She married Sir John Langham, 1st Bt., son of Edward Langham and Agnes West, in 1620.1 She died on 8 April 1652.1
From 1620, her married name became Langham.
Children of Mary Bunce and Sir John Langham, 1st Bt.
Sir James Langham, 2nd Bt.+2 b. 1620, d. Aug 1699
Sir William Langham, 3rd Bt.+2 b. 1631, d. b 1701....."
And her husband (COULD BE THE GRAND MANSION HERE)
"Sir John Langham, 1st Baronet (20 April 1584 – 16 May 1671) was an English politician who sat in the House of Commons in 1654 and 1660.
He was the eldest son of Edward Langham of Guilsborough, Northamptonshire, who he succeeded in 1607. He was apprenticed to Sir Richard Napier, a Turkey merchant, for whom he worked in the Near East.
On his return he became a Turkey merchant himself, made a considerable fortune in the City of London and became a prominent member of the Levant and East India Companies. He built up an estate in Northamptonshire which included the purchase of the Cottesbrooke estate in 1635.
He was an alderman and sheriff of London in 1642. He was committed to the Tower of London twice, with the Lord Mayor and other aldermen of London for refusing to publish an act for the abolition of royalty.
If you think this one is Grand, I'll bet that the Rokesbys had one twice the size, or more.....