
“Alae”
Pronunciation: /ˈaɪliː/ (EYE-lee)
Part of Speech: Noun (Plural)
Quick Definition: Open-sided, recessed rooms flanking the atrium in an ancient Roman private dwelling (domus).
General Use: “In a Pompeian house, the host would often receive less important clients in the large Alae flanking the central hall. Consequently, this kept the formal tablinum reserved for family or honored guests.”

Fresco Decoration – The walls of the Alae were often decorated with vibrant and complex frescoes, reflecting the wealth of the homeowner. These paintings provided monumental visual interest near the main entrance.

The Ancestor Shrine – Although generally open, the Alae often contained the imagines (wax masks of ancestors) and other funerary monuments. This arrangement made the recess a semi-private shrine, hiding its true devotional function.

Vitrification of Space – The Alae provided a visual extension of the atrium. They enhanced the spaciousness and formality of the main hall, creating a monumental effect of depth upon entering the Roman house.
Did you know?
The original purpose of the Alae is debated by archaeologists. Some theories suggest they may have evolved from the open-air courtyards of earlier Italic houses. Later, they became semi-public spaces. Furthermore, in wealthier homes, these recesses were occasionally closed off and converted into more private spaces like small libraries or dining areas.
Alae Definition (Primary Context)
The Alae are architectural features defined by their placement and open nature. They are located on the left and right sides of the central atrium. They were generally wide, shallow, and open to the atrium without doors, serving as lateral extensions of this central space. Their function was primarily semi-public and decorative. However, they provided convenient, accessible waiting areas for visitors or space for household display. The Alae formed part of the pars urbana (the public section) of the Roman house.

Latin: ala, meaning “wing,” “flank,” or “armpit,” referring to the location of these rooms flanking the main body of the house.

Wings, Flanking Chambers, Recesses, Lateral Rooms.

Tablinum (rear office), Peristylium (rear garden courtyard), Cubiculum (bedroom).

Vestibule, Nook, Alcove, Antechamber.
Historical Context of Alae
The architectural feature developed as the domus evolved from simple Italic forms into the grand, complex structures seen in Pompeii and Herculaneum during the late Roman Republic and early Empire. The arrangement of the Alae, atrium, and tablinum became highly standardized. Consequently, this arrangement visually reinforced the owner’s status and allowed for the orderly management of the salutatio (morning reception ritual). Their importance declined somewhat in later Roman architecture as the emphasis shifted to the peristyle garden.

Social Context of Alae
The function of the Alae was heavily linked to the patron-client relationship central to Roman society. They acted as secondary reception areas during the morning salutatio. This allowed the dominus (house owner) to manage the flow of visitors and clients efficiently. Consequently, the family used the display space within the Alae to showcase wealth and ancestry. The presence of ancestral images served as a clear status symbol for all guests.
| Area of Influence | Significance and Impact |
| Patronage | The spaces provided waiting areas for clients during the daily salutatio ritual, supporting the social hierarchy. |
| Genealogy | The display of imagines (ancestral masks) within the rooms publicly advertised the noble lineage and historical importance of the family. |
| Light and Air | Their open placement helped distribute light and air laterally from the atrium, enhancing the habitability of the central house section. |
| Architectural Flow | The open design ensured a visual and physical continuity. This connected the atrium to the tablinum and provided access to other areas. |
Terms Related to Alae
The Alae were integrated into the classic Roman domus design. Understanding these related terms provides essential context for the architectural layout. This provides a clearer view of the structural framework surrounding the Roman house.

| Term/Concept | Description and Relevance |
| Atrium | The central hall of the Roman house. The recesses directly flanked this main space. |
| Tablinum | The office or reception room located at the back of the atrium. The wings often provided indirect access to this area. |
| Cubiculum | A small bedroom located off the atrium or peristyle. This space contrasted with the public, open nature of the recesses. |
| Impluvium | The sunken basin in the atrium floor. This collected rainwater that entered through the opening in the roof. |
| Domus | The traditional private city house of the wealthy Roman citizen. The rooms were a defining feature of this type of house. |
| Imagines | Wax portrait masks of distinguished ancestors. These were frequently stored and displayed in the Alae. |
Sources & Credits
Sources
- Vitruvius, M. P. “Ten Books on Architecture (De Architectura).” Dover Publications, 1960. [Historical source]
- Clarke, J. R. “The Houses of Roman Italy, 100 B.C.–A.D. 250.” University of California Press, 1991. [Historical source]
- Department of Greek and Roman Art, The Met. “The Roman House.” Heilbrunn Timeline of Art History. [Museum site]
- “Ala.” Oxford Latin Dictionary. [Definition site]
- Wallace-Hadrill, A. “Houses and Society in Pompeii and Herculaneum.” Princeton University Press, 1994. [Historical source]





