man Sir Richard "Robert Langton" Langton Knt. Baron of Newton, Lancashire‏‎ #1008‎    , son of Sir Henry Langton Knt. baron of Newton, Lancashire and ELizabeth Unknown‏.
Died ‎23 Aug 1500
marched to the north with the Duke of Gloucester, afterwards Richard III, and Lord Stanley, and was made a knight banneret by the latter at Hutton Field in 1482.

Assumed to be the following:
Studied at Cambridge [ Cambridgeshire].
B.A. (Oxford);
M.A. (Oxford) 1453/4 .

1475       He was granted certain lands etc. in Little Harwood byRichard
Osbaldeston(q.v.).
(www.nationarchives.gov.uk/A2A  ref. DDTO O 3/46)
from : http://www.girders.net/index.php?dir=Langton%2F

The Cumberland visition has his as Robert, not Richard.

18 Aug.1483   He wasone of those ordered to attend Richard at Pontefract on the 26th.
                        (Harl.433II pp.10-11)
     Dec.            Granted an annuity of £10. (Harl.433I p.104)

Married ‎before 20 Apr 1467 (at least 33 years married) to:

woman Isabella Gerrard‏‎ #1009‎    , daughter of esq. Thomas Gerrard of Bryn and Lady Margaret Stanley‏.
Born ‎before 1467, died ‎after 1516‎, at least 49 years

Children:

1.
man Ralph "Raffe Langton" Langton Of Newton, Lancashire‏‎ #1011    
Born ‎1474, died ‎29 Jul 1503‎, 28 or 29 years
left 20 marks toward repairing Low church, showing this branch of the Langtons and those of Lowe, were clearly still on close terms.

In addition, on his death, the Langton feoffees apointed Thomas Langton apparently of Lowe, and Brother of Gilbert as Rector of Wigan in 1504. Clearly this is not his Son as the Rector dies in 1506.

of Samelsbury at marriage.

https://books.google.co.uk/books?id=s3pEAAAAcAAJ&pg=PA129&lpg=PA129&dq=%22raffe+langton%22&source=bl&ots=6QoIbAQpZe&sig=q3hFWDRrH26Y6BpBW0VB42D7mIk&hl=en&sa=X&ved=2ahUKEwjAmryG4N_cAhWqKcAKHfFPC9MQ6AEwAXoECAgQAQ=onepage&q=%22raffe%20langton%22&f=false
Plantiff: Raffe Langton
Defendent: Thomas Sowthwell, esq.
Object of suit: Claim of presentation
Premiss: Defedent, being patron of the rectory or parsonage of Brancaster, granted the next presentation to Wm. Parker who assigned it to plaintiff.
County: Norfolk
2.
woman Helen "Ellin Langton" Langton‏‎ #1050    

visitation of somersetshire.
3.
woman Jane Langton of Newton, Lancashire‏‎ #2292    

this source suggests her father is a Thomas, but this is likely a mistake given her husbands name.
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=allerton_manor&id=I27415