Chatham House

The Royal Institute of International Affairs. The rule that bears its name hides the speaker.

Chatham House (the Royal Institute of International Affairs, founded 1920) is the documented sibling of the CFR, both born from the 1919 Paris peace delegations' Institute of International Affairs plan — the Round Table milieu's institutionalization, per Quigley's archival account. The 'Chatham House Rule' (attributable content, unattributable source) became the operating protocol of elite off-record discussion everywhere. The node marks the network's London terminal, linking Round Table, CFR, and the pilgrims-society dining layer.