Marquess of Santa Cruz was a noble title in two countries and Marquise of Santa Cruz in one.
Brazil
Romualdo Antônio de Seixas (1787–1860) was the first and only Count and Marquess of Santa Cruz.
Portugal The feminized title was created by John V of Portugal by decree in 1691 for Teresa de Moscoso Osório
Spain Spanish variations include: Marquess of Santa Cruz. Marquess of Santa Cruz de Aguirre. Marquess of Santa Cruz de Marcenado. Marquess of Santa Cruz de Ribaduya. Marquess of Santa Cruz del Viso.
References
See also Count of Santa Cruz Duke of Santa Cruz