Coat of arms of Pedro Dias Pais Leme, baron and marquess of São João Marcos (the same Portuguese arms of the Leme family). Also used by the marquess of Quixeramobim.

Blazon: Or, five Martlets in saltire Sable.
Archivo Nobiliarchico Brasileiro, of Rodolfo Smith de Vasconcelos and Jaime Smith de Vasconcelos (1918).
myself, based on symbol of XIX century.