hubieran coronado
-they/you had crowned
Past perfect subjunctiveellos/ellas/ustedesconjugation ofcoronar.

coronar

Era tan pronto como las cúpulas de los bizantinas hubieran coronado sus mezquitas, y las alfombras persas espléndidas, combinadas con los mosaicos de los colorantes, los habían adornado.
It was as soon as the bizantinas cupolas had crowned its mosques, and the splendid Persian carpets, combined with the colorings mosaics, had decorated them.
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