Find Ancestors

I am trying to find the marriage of my 3 x Grt grandparents marriage without a lot of info to help:

My 2 x Grt Grand father is George Briggs born 27 July 1809 baptised 13 Aug 1809 at Saint Mary Le Bone church Marylebone London.
His parents are shown as Samuel Briggs and Ann. This is the problem as I don't know her maiden name:
Any chance that a marriage might be found in Marylebone around that time that might point to them being the parents.

Sorry for the lack of info any help that you can give will be much appreciated:

Mumbles.

Nothing online that I can see

No help, but possible sisters??

Mary Ann Briggs
in the London, England, Church of England Baptisms, Marriages and Burials, 1538-1812
Name: Mary Ann Briggs
Gender: Female
Record Type: Baptism
Baptism Date: 26 Dec 1802
Baptism Place: St George, Hanover Square, Westminster, Middlesex, England
Father: Samuel Briggs
Mother: Ann Briggs


Eliza Briggs
in the London, England, Church of England Baptisms, Marriages and Burials, 1538-1812
Name: Eliza Briggs
Gender: Female
Record Type: Baptism
Baptism Date: 25 Dec 1804
Baptism Place: St George, Hanover Square, Westminster, Middlesex, England
Father: Samuel Briggs
Mother: Ann Briggs

Thanks ArgyllGran yes they could well be sisters:

Wild stab in the dark at possible marriage of Mary Ann:

Mary Ann Briggs
in the London, England, Church of England Marriages and Banns, 1754-1932
Name: Mary Ann Briggs
Gender: Female
Record Type: Marriage
Marriage Date: 20 Nov 1848
Marriage Place: St John the Evangelist, Lambeth, Lambeth, England
Father: Samuel Briggs, tailor, deceased
Spouse: John Jenkins, bookseller
Register Type: Parish Register

Spinster and bachelor, both full age.
Address: Oakley Street

is this samuel

Samuel
Last name Briggs
Birth year -
Death year 1821
Death date ? ? 1821
Burial year 1821
Burial date 26 Jun 1821
Burial place St George, Hanover Square
County Middlesex
Country England
Archive
City of Westminster Archives Centre
Record set Westminster Burials

It is a possibility.