Erard of Brienne may refer to: Erard I of Brienne (c. 1090 – c. 1120?), count of Brienne Erard II of Brienne (died 1191), count of Brienne and grandson of the above Erard of Brienne-Ramerupt (c. 1170 – 1246), nephew of the above; frequently referred to himself as "Erard of Brienne" in his letters