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v1 · public beta

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Robert Stewart, 1st Marquess of Londonderry

Irish politician, born 1739

  • Fame44.8
  • Momentum2.2
  • Wikipedia856
Source-basedStable
Lived 1739–1821, aged 82
PoliticiansPolitician
  • Wikipedia
    6 languages
    Cross-language footprint
  • Era
    1739–1821
    Aged 82
Network

In their orbit

People connected to Robert Stewart, 1st Marquess of Londonderry

Frances Stewart
SpouseFrances Stewart
SS
SpouseSarah Seymour
Robert Stewart, Viscount Castlereagh
ChildRobert Stewart, Viscount Castlereagh
Charles Vane, 3rd Marquess of Londonderry
ChildCharles Vane, 3rd Marquess of Londonderry
OS
ChildOctavia Stewart
LG
ChildLady Georgiana Stewart
FS
ChildFrances Stewart
LE
ChildLady Emily Stewart
Summary
Updated 2026-06-16

Robert Stewart, 1st Marquess of Londonderry, was a County Down landowner, Irish Volunteer, and member of the Irish Parliament who, exceptionally for an Ulster Scot and Presbyterian, rose within the ranks of Ireland's Anglican "Protestant Ascendancy." His success was fuelled by wealth acquired through judicious marriages, and by the advancing political career of his son, Viscount Castlereagh. In 1798 he gained notoriety for refusing to intercede on behalf of James Porter, his local Presbyterian minister, executed outside the Stewart demesne as a rebel.

Key facts
Profile type
Politician
Category
Politicians
Last updated
2026-06-16
Gallery

Photos

3 images
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By the numbers

Score breakdown

The six component signals behind the Fame score, and their ranks across the leaderboards.

Fame
Stable
44.8
Composite of search demand, mentions, audience & graph footprint.
Score components
Momentum2.2
Historical5.9
Source confidence35.0
Completeness60.0
Global rank
—
Country rank
—
Category rank
—
Receipts

Sources

  • Robert Stewart, I marchese di Londonderry
    wikipedia · it.wikipedia.org
    Low confidence
  • Robert Stewart, 1st Marquess of Londonderry
    wikipedia · en.wikipedia.org
    Low confidence
  • Robert Stewart (1er marquis de Londonderry)
    wikipedia · fr.wikipedia.org
    Low confidence
Identity

Quick facts

Country
—
Category
Politicians
Profile type
Politician
Status
deceased
Born
September 27, 1739
Died
April 6, 1821
Wikipedia
View article
Last updated
4d ago
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