Family / house

Southwell of Castle Mattress; Southwell of Castle Hamilton; Cecil-Hamilton; Hamilton of Castle Hamilton

Family / cadet branch

Southwell of Castle Hamilton, deriving estate succession through Margaret Cecil Hamilton

Armiger / bearer

Thomas George Southwell, 1st Viscount Southwell, and Robert Henry Southwell of Castle Hamilton

Entity type

cadet_branch

Social rank / class

peer

Heraldic authority

Peerage of Ireland; Irish landed-estate records

Record basis

other

Issued / first recorded

1741

Until / superseded

1817

Historical period

Georgian Ireland

Blazon

Southwell arms are not reconstructed here from the sources consulted. The armorial fact securely established for this subject is the marital and estate transmission from Margaret Cecil Hamilton, not a new Cecil-Hamilton quartering.

Plain-English description

Thomas George Southwell married Margaret, daughter and co-heiress of Arthur Cecil Hamilton. Their second son Robert Henry Southwell succeeded to Castle Hamilton, making the Southwells the principal resident successors to the estate in the late eighteenth and early nineteenth centuries.

Difference / variant

Estate and heiress transmission by marriage; no separate combined shield located.

Source reference

University of Galway, Hamilton (Castle Hamilton) family entry

Source

Open source

Genealogical context

Father

Thomas Southwell, 2nd Baron Southwell

Mother

Mary Coke

Spouse(s)

Margaret Cecil Hamilton

Children / next generation

Thomas Arthur Southwell, 2nd Viscount Southwell; Robert Henry Southwell of Castle Hamilton; Other issue recorded in peerage sources

Documented depiction

Open depiction source

Notes / sources