A pair of pastel portraits of Daniel Edler  von Czerva ( to the the plaque on the frame) and his wife was executed in the last quorter of 18th century and due to the very similar style was attributed to Romanian portrait painter Anselm Wagner (1766 Timisoara - 1806). For comparison see several pastel portraits by Wagner under following link:

https://www.pastellists.com/Articles/WAGNERa.pdf

Anselm Wagner (1766 Timisoara (Temeswar), Romania - 1806) was a son of Viennese painter Michael Wagner (1731-1783) who moved to and settled in Transylvania (Romania).
Anselm studied at the Vienna Academy under the Danish artist Johann Jakob Stunder; he was also influenced by the Baroque style of Meytens, turning (around 1796) to Rococo style and later to Neoclassical (sic!) approach. From around 1799 Wagner traveled to Transylvanian towns Sibiu, Brasov, Cluj and Mintia, painting portraits of the noble Gyulay family. With time Wagner abandoned religious paintings for portraiture in oil, miniature and pastel, and made numerous portraits in Transylvania.

Literature: Art lexicons by Bénézit; Thieme/Becker; in online: https://www.pastellists.com/Articles/WAGNERa.pdf

inscriptions: unsigned, on the frame of male portrait is bronze plaque with the name of the sitter.

Technique: each pastel on parchment, under glass from both sites,  framed.

Measurements: each unframed 13 3/4" x 18 3/4" (35 x 47,5 cm), framed 17 1/3" x 22 1/4"(44 x 56,5 cm).

Condition: good