Names and numbering used on pompeiiinpictures.

1. Pompeii Regio, Insula and Entrance Numbering

Structure of numbers

Pompeii has been divided up into Regions or Regio by the archaeologists, based on a methodology devised by Fiorelli in the 1860s. 

Each Regio contains a number of Insula (in this case defined as blocks of houses and shops bounded by roads). 

Each Insula has its individual door entrances numbered. 

We have used this numbering system for this site

Our web site has  a picture of every doorway and detail of the insides of most.

The exception is the tombs, gates, towers, and villas where a shorter number is used.



There are nine Regio numbered from I to IX using Roman numerals.

Our plans show each regio as a different colour.



Each Regio has several Insula numbered from 1 upwards (not in Roman numerals). 

The insula plans use the same colour as the regio they are in.



Each entrance has a number from 1 upwards or in a few cases a, b, c etc and sometimes a combination of the two. 


Room or ambiente

A fourth and final part of the numbering gives the room number on archive plans.

This is not used in the number structure of pompeiiinpictures.

In the houses where we do use room numbers they are shown in the description under each photograph.

In these cases there is usually a link at the top of the page to a plan showing the room locations.

If we have access to an accepted plan we try to use it, but over the years plans have not always been available.

In these cases we have had to draw our own and our room number reflects the sequence in which we entered and photographed the house.


The use of the numbering system

This gives a numbering system for each entrance such as IX.2.10 where this represents the entrance at Regio IX, Insula 2, Door 10.

In some documents the insula number may be in lower case Roman numerals e. g. IX.ii.10.


2. Changes to numbering of insulae over the years.

Over the years the numbering has changed as the site has been further excavated. The original Roman road, house names and numbers are not known. 

Those in use today have evolved in a variety of ways since the site was rediscovered and excavated.

If you are researching old records then you need to make yourself aware of renumbering that has taken place.

Something originally found in Regio II.4 in the old records may refer to what is now Regio II.1.

An entry in the old records for II.4.6 may not necessarily be part of the Villa of Julia Felix, but may instead refer to the thermopolium at II.1.6.


During the course of excavations and with new discoveries some of the insulae, or parts of them, have had to be re-numbered, sometimes more than once and in some cases split between different insulae.

The numbers recorded in the original Notizie degli Scavi are in these cases different from the numbers in use today.

The insula numbers previously used may also be shown as lower case Roman numerals e.g. II.4 may be shown as II.iv.

Please be aware of this when reading the old excavation reports and documents.


The following list of numbers used in the past and their corresponding present day enumeration was produced by CTP in 1965 and published in 1981.

See Van der Poel, H. B., 1981. Corpus Topographicum Pompeianum, Part V. Austin: University of Texas, p. 511-2.

Enumeration of Regions from c.1865 to c.1965
Inoperative number Current (1965) number
I.1 I.4
I.11 I.3
I.11 I.19
I.12 I.17
I.14 I.19
I.15 I.20
I.16 I.21
I.17 I.15
I.18 I.15
I.19 I.22
I.20 I.17
II.1 I.11 or II.6 or VIII.1
II.2 I.12 or II.4 or VIII.2
II.3 I.13 or VIII.3
II.4 II.1 or VIII.4
II.5 II.2 or VIII.5
II.6 II.3 or VIII.6
II.7 II.4 or VIII.7
II.8 II.5
II.9 II.6
II.10 II.7
II.11 II.8
II.12 II.9
II.13 I.20
II.14 I.14
II.15 I.15
II.16 I.16
II.17 I.21
II.18 I.22
III.1 III.4 or III.11 or IX.1 or IX.14
III.2 III.5 or III.8 or III.12 or IX.2
III.2-3 III.12
III.3 III.4 or III.9 or III.12 or IX.3
III.4 III.7 or III.10 or IX.4
III.5 III.11 or IX.5
III.6 III.12 or IX.6
III.6-7 III.12
III.7 IX.7 or IX.8
III.7-8 III.7
III.8 IX.8 or IX.9 or IX.14
III.9 III.8 or IX.9 or IX.10
III.10 III.9 or IX.7 or IX.10
III.11 III.10
III.12 III.11
III.13 III.12
IV.1 V.4 or VII.1
IV.2 V.5 or VII.2
IV.3 IV.1 or VII.3
IV.4 IV.2 or VII.4
IV.5 IV.3 or VII.5
IV.6 IV.4 or VII.6
IV.7 IV.5 or VII.7
IV.8 VII.8
IV.9 VII.9
IV.10 VII.10
IV.11 VII.11
IV.12 VII.12
IV.13 VII.13
IV.14 VII.14
IV.15 VII.15
V.1 VI.13
V.2 VI.14
V.3 V.1
V.4 V.6
V.5 V.7
VI.4 V.6 or VI.5
VI.5 V.7 or VI.6
VI.6 VI.7
VI.7 VI.8
VI.8 VI.9
VI.9 VI.10
VI.10 VI.11
VI.11 VI.12
VI.12 VI.15 or VI. Ins. Occ.
VI.17 VI. Ins. Occ.
VII.10 VII.12
VII.11 VII.10
VII.12 VII.11
VII.13 VII.14
VII.14 VII.13
VII.16 VII. Ins. Occ.
VIII.2 VIII.1 (only the Tempio di Venere Pompeiana)
IX.6 IX.8
IX.7 IX.8 or IX.9
IX.8 IX.9 or IX.10
IX.8 IX.10 or IX.14
IX.10 III.8 or IX.7 or IX.14
IX.11 III.9 or IX.14
IX.12 III.10
IX.13 IX.6
IX.14 III.1 or IX.7
IX.15 III.2 or IX.11
IX.16 III.3 or IX.12
IX.17 III.10 or IX.13
IX.18 III.1 or III.9
IX.19 III.2 or III.8
IX.20 III.3 or IX.14


Spinelli's previous numbering system

Minervini in 1853 refers to "a recently introduced laudable custom of denoting with progressive numbers all the openings of the buildings on the different streets of Pompeii: this arrangement is due to the ch. signor Principe di Sangiorgio Spinelli, current General Superintendent of the excavations of the Kingdom".

See Bullettino Archeologico Napolitano Nuova Serie Anno 1, 1853, no. 4, p. 25.

"Strada dell'Abbondanza 1" equates to the modern number VIII.3.1, "Strada Stabiana 110" equates to I.4.5, for example.

We have included these at the top of each of our relevant pages.

For a full list of the Spinelli numbering and their modern equivalents:

See Van der Poel, H. B., 1981. Corpus Topographicum Pompeianum, Part V. Austin: University of Texas, p. 505-510.

Using our search facility with the street name and number enclosed between " " will locate the modern numbered page.


3. Names


Many houses also have names as well as numbers. 

Some have several names and in some cases the same name is used on different houses.

Our web page for IX.2.10 is headed

IX.2.10 Pompeii. House of Chlorus and Caprasia or Casa del Gallo II.

This indicates the house has been known by two names and one of them, the Casa del Gallo, had already been used elsewhere in Pompeii.

House names have changed.

Some houses or shops are named after possible owners if an artefact such as a seal, or graffiti for example have been found there.

Others are named after paintings or significant discoveries such as a surgeons instruments or architectural features.

Many were named after visiting dignitaries, who sometimes visited several times or to several houses and each house may have the same or a similar name.

In the case of tombs, gates, towers, and villas a shorter number is used to make them unique for the web pages.



Tombs have a short number based on the official reference, the excavation reports, or the major accepted work on a specific group of tombs.

These records often take the location as a given and have a one or two digit reference on their plan for each tomb.

To make these unique we have used the first 2 or 3 letters reflect the location, usually the gate they are outside.

The last 1 or 2, sometimes with an extra a, b etc is the tomb number at that location.

e.g. The tomb of Caius Vestorio Prisco outside the Porta Vesuvio or Vesuvian Gate is VGJ.

         J is the letter used in the excavation report and plans.



The city gates are referred to on the plans by the official Porta ......... name and this is also translated to ......... Gate

e.g. Porta Ercolano and Herculaneum Gate



Tower I to Tower XII are numbered T1- T12



These are usually referred to by name and location e.g. Villa Regina at Boscoreale.

Those in Pompeii usually have a regio.insula.entrance number e..g. II.4.6 is the Villa of Julia Felix or Villa di Giulia Felice.

All villa names are in the house names index.

There is also a full list of the villas in Pompeii and the surrounding areas in the menus on every page.


Names Index

All the names used on pompeiiinpictures are contained in our alphabetic names index.

You can use the pompeiiinpictures Names Index menu button on any page to get to the index, find a name and get a direct link to the page/location with that name.


4. Using pompeiiinpictures

We hope pompeiiinpictures will help you find your way around. 

There is nothing like visiting Pompeii.

Hopefully pompeiiinpictures can help you plan your visit.

You can also use the search page if for instance you are trying to locate distinct features such as all paintings of Mercury or Hermes.

The site can also help you make sense of, and catalogue, your photos after you get back home.


There is also a useful plan - Pompeii Plan of Excavations / Pompeii Pianta Scavi, (Autore Dr. Ing. Hans Eschebach).

You can buy this at the Pompeii bookshop when you get there. It cost 10 euros in 2010 and gives much more detail than the free guide plan.

Our site Regio, insula and house numbering is largely based on this plan.


All the numbers on pompeiiinpictures are the same as those on the plan other than a handful of exceptions we found on the ground on our trips.  

In those cases we have given both the plan number and what is actually numbered on the doorway.


5. Mobile phones, tablets and Ipads can be used also

You can also now use pompeiiinpictures on your mobile phone, tablet and Ipad accessing it through your Internet browser.

Be sure to check what that may cost you in phone charges, particularly if you are abroad, to avoid large shock bills.





The low resolution pictures on this site are copyright © of Jackie and Bob Dunn and MAY NOT IN ANY CIRCUMSTANCES BE USED FOR GAIN OR REWARD COMMERCIALLY. On concession of the Ministero della Cultura - Parco Archeologico di Pompei. It is declared that no reproduction or duplication can be considered legitimate without the written authorization of the Parco Archeologico di Pompei.

Le immagini fotografiche a bassa risoluzione pubblicate su questo web site sono copyright © di Jackie e Bob Dunn E NON POSSONO ESSERE UTILIZZATE, IN ALCUNA CIRCOSTANZA, PER GUADAGNO O RICOMPENSA COMMERCIALMENTE. Su concessione del Ministero della Cultura - Parco Archeologico di Pompei. Si comunica che nessun riproduzione o duplicazione può considerarsi legittimo senza l'autorizzazione scritta del Parco Archeologico di Pompei.

Ultimo aggiornamento - Last updated: 03-Jun-2024 20:39