man Richard "Richard Langton" Langton of Highworth, Wiltshire of Clerkenwell, Middlesex, London, England‏‎ #896‎    , son of Vicar Robert "Roberti Langtone, Roberti Langton, Robert Langt" Langton of Highworth of Castle Hedingham, Essex, UK and Judith "Judieth Lawrence, Judeth Langton" Lawrence of Chilton (hungerford or didcot)‏.
Died ‎after 22 Oct 1683
Apparently his mother was already dead, having died the 23 Feb 1637.

This son's baptism is recorded as son of Robert and Judeth. But occurs after the death of the mother...

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We can be fairly sure that the Richard who married Ursulla in London and had children is this Richard, the son of Robert Jr of Highworth because he names his daughter Philadelphia, the same name given to Richard of Highworth's sister.

Married ‎22 Oct 1683 St James', Clerkenwell, London, UK to:

woman Ursulla "Ursula Marrett, Ursilla Marrett" Marrett of Clerkenwell, Middlesex, London, England‏‎ #6805‎    
Buried ‎28 sep 1686 St Dunstan's in the West, London, UK

Children:

1.
man Benjamin Langton of St Martin-in-the-fields, Middlesex, London, UK‏‎ #60644‎    
Born ‎2 Aug 1684 Westminster, London, England
2.
man Philadelphia Langton of St Dunstan's in the West, London, UK‏‎ #60645‎    
Buried ‎23 Oct 1685
3.
man Merritt "Marrett Langton, Merick Langton" Langton of St Dunstan's in the West, London, UK‏‎ #60646    
Died ‎1740 London, England
MERRITT is how he signed.

Merritt was buried in 1740, leaving his third wife Elizabeth ParrĀ in London with three young children; Mary age 10, Richard age 6 and Thomas age 4. We don't know what happened to the family after that.