Don Baltasar de Marradas et Vique or Maradas (28 November 1560 in Valencia, † August 12, 1638 in Prague) was a Spanish nobleman, imperial field marshal during the Thirty Years War and governor of Bohemia.
Marradas came in 1599 at the imperial court of Rudolf II, and there was war. In 1617 during the Uskok War he fought against the Republic of Venice. In the war against the Winter King Frederick V in 1619, he moved with a Spanish cavalry regiment.
Despite the fact that he could show no great military successes, he was raised in 1621 to the rank of an imperial count and provided with plenty of land. 1626 he became a field marshal and in in 1627 was appointed Lieutenant General. Marradas was involved in the negotiations for the dismissal of Wallenstein in 1630 in Regensburg. At Prague in 1631 he retreated without a fight to the advancing troops from Saxony, under Hans Georg von Arnim-Boitzenburg. After further failures in Silesia, he was deposed in 1632 at the instigation of Wallenstein. Marradas 1634 was one of the masterminds behind the murder of Wallenstein.
He died in 1638 as a privy councilor and governor of Bohemia.