structural:reformatting, linguistic:voice_change
Archaeology

A German Oriental Society led by Oscar Reuther excavated at Ctesiphon in 1928–29 mainly at Qasr bint al-Qadi on the western part of the site. In winter of 1931–1932 a joint expedition of the German State Museums (Staatliche Museen zu Berlin) and The Metropolitan Museum of Art continued excavations at the site, focusing on the areas of Ma'aridh, Tell Dheheb, the Taq-i Kisra, Selman Pak and Umm ez-Za'tir under the direction of Ernst Kühnel.

In the late 1960s and early 1970s, an Italian team from the University of Turin directed by Antonio Invernizzi and Giorgio Gullini worked at the part of the site on the other side of the Tigris, which they identified as Veh Ardashir. Work mainly concentrated on restoration at the palace of Khosrow II. In 2013, the Iraqi government contracted to restore the Taq Kasra, as a tourist attraction.