hubieron vencido
-they/you had defeated
Preterite perfectellos/ellas/ustedesconjugation ofvencer.

vencer

Sin embargo, continuaron siendo ignoradas incluso después del final de la Segunda Guerra Mundial, y puesto que no quedó nadie para insistir que fueran cumplidas, la ciudad de Berlín las olvidó total y convenientemente hasta que todos los plazos legales hubieron vencido.
However, they continued to be ignored even after the end of WWII, and since there was no one left to insist that they be met, the city of Berlin entirely and conveniently forgot about them until all legal deadlines had passed.
Word of the Day
to sprinkle