Hitler's 1937 Nobel-ban decree mechanically caught exactly three other laureates besides Ossietzky — Kuhn, Butenandt, and Domagk — per the Committee's own institutional history

nobel-prizenazi-germanycoerced-refusalrichard-kuhngerhard-domagkadolf-butenandt

Ossietzky's 1935 Peace Prize triggered a Nazi decree banning any German national from accepting a Nobel Prize (see claim-ossietzky-1935-nobel-peace-prize-hitler-decree-forced-decline). The Committee's own institutional historian, Geir Lundestad, closes the count of the decree's scientific casualties in one parenthetical: "Hitler's reaction to the award was strong. He issued an order under which no German could receive any of the Nobel Prizes. (This affected two Chemistry Laureates, Richard Kuhn in 1938 and Adolf Friedrich Johann Butenandt in 1939 and Medicine Laureate Gerhard Domagk in 1939.)"

This closes the gap the vault's existing Domagk/Kuhn claim-note left open, where Adolf Butenandt was "sometimes cited as a third case" but left Tier-1-unconfirmed. Butenandt's own Nobel Foundation "Facts" page independently corroborates this in the Foundation's identical boilerplate: "Adolf Butenandt was caused by the authorities of his country to decline the award but he later received the diploma and the medal." — the same sentence structure already documented for Kuhn and Domagk. The set is therefore closed at three: Kuhn (1938 Chemistry), Butenandt (1939 Chemistry), and Domagk (1939 Medicine) — one institutional history naming a closed enumeration, corroborated laureate-by-laureate on the Foundation's own per-prize pages.

No independent cross-check was made of the full roster of German Nobel laureates 1937-1945 across every category (Physics, Literature) to confirm Lundestad's parenthetical is exhaustive rather than merely the cases he chose to mention; his wording ("this affected...") reads as closed enumeration, and the claim here is scoped to what the Committee's own institutional history states, not an independently re-derived historical count.