plate no. 2703

The School of Athens (detail)

frescoHigh Renaissancehistory paintingfiguresrobesglobebeardhistoricalportrait

recreation guide

The School of Athens is a monumental history painting executed in buon fresco, representing the pinnacle of Raphael’s High Renaissance style. Distinctive to this work is the rigorous planning process, where Raphael utilized extensive preparatory drawings and full-scale cartoons to manage the complex composition of numerous figures. The technique relies on the chemical fixation of pigments into wet lime plaster, ensuring durability but demanding rapid execution within the constraints of the daily plaster section, or giornata. A notable technical feature documented in this specific work is the use of a 'blind stylus' to scratch lines into the plaster, as well as the scraping of indentations into wet plaster to create depth, particularly in the eyes of the figures.

estimated time

Several weeks to months, depending on the scale of the recreation. The buon fresco technique requires working in daily sections (giornate), meaning the painting cannot be completed in a single session. Each giornata allows only 7-9 hours of active painting before the plaster dries.

materials

7 items

steps

7 in sequence

materials

item	purpose	modern equivalent
Lime plaster (calcium hydroxide)	The binding medium and surface for the fresco. It undergoes carbonatation to fix the pigment.	Hydrated lime or slaked lime mixed with sand.
Alkaline-resistant pigments	Colors that can withstand the high pH of wet lime plaster without degrading.	Earth pigments (ochres, umbers), lapis lazuli, azurite, and lead white (used with caution due to reactivity).
Water	Vehicle for mixing pigments. No organic binder is required for buon fresco.	Distilled water.
Red pigment (Sinopia)	Used for sketching the initial composition on the rough underlayer (arriccio).	Red ochre or iron oxide pigment.
Soot bag (Spolvero)	Used to transfer pricked cartoon lines onto the wet plaster via pouncing.	Charcoal powder in a pounce bag.
Blind stylus	A sharp tool used to scratch lines into wet plaster without leaving pigment, creating indentations.	A pointed metal tool or stylus.
Scraping tool	Used to scrape indentations into wet plaster to increase the illusion of depth, specifically noted for the eyes in this work.	A palette knife or specialized plaster scraper.

preparation

surface prep

The wall must first be prepared with a rough, thick undercoat of plaster known as the arriccio (Source 3). This layer is allowed to dry for several days. Once dry, the composition is sketched onto this underlayer using a red pigment called sinopia (Source 1). If painting over an existing surface, it must be roughened for adhesion (Source 1).

underdrawing

Raphael extensively used drawings to plan compositions, often creating full-size cartoons (Source 5). These cartoons were pricked with a pin and then 'pounced' with a bag of soot (spolvero) to transfer dotted lines onto the wall (Source 1, Source 5). Additionally, Raphael made unusual use of a 'blind stylus' to scratch lines into the plaster, leaving only an indentation without a visible mark; these indentations are visible in The School of Athens (Source 5).

underpainting

In buon fresco, there is no traditional underpainting layer with a binder. The pigment is mixed with water and applied directly to the wet intonaco (Source 2, Source 3). The pigment sinks into the plaster and is fixed by the chemical reaction of carbonatation (Source 2).

color palette

General Earth Tones

Ochres, umbers, siennas

General use in Raphael's palette for architectural elements and drapery shadows. These are alkaline-resistant and suitable for buon fresco.

Blues

Lapis lazuli or azurite

Likely used for the sky or specific drapery, consistent with High Renaissance practices. Note: Some blue pigments may require a secco application if not stable in wet lime, but Raphael primarily used buon fresco.

Whites/Lights

Lead white or lime white

Highlights and flesh tones. Raphael perfected sfumato modelling for subtlety in flesh (Source 4), though this is more common in oil, the principle of soft transitions applies.

composition

The composition is a complex history painting featuring numerous figures in dynamic and complex positions, influenced by Leonardo da Vinci’s pyramidal compositions and contrapposto (Source 4). Raphael’s figures often show an interplay of glances and are arranged in cohesive groups (Source 4). The work reflects a 'monumental quality' in the figures (Source 4). Specific details of the room layout or individual figure poses are not described in the provided sources, so general compositional habits are cited.

step by step

underdrawing→first pass→refining→finishing

underdrawing

step 01
Apply the rough arriccio layer to the wall and allow it to dry. Sketch the composition using sinopia (red pigment) on the arriccio.
Tip — Ensure the arriccio is fully dry before sketching to prevent smudging.
Sinopia underdrawing
step 02
Prepare full-size cartoons of the composition. Prick lines along the main contours. Hold the cartoon against the wall and pounce with a bag of soot to transfer the dotted outline.
Tip — Ensure the soot dots are visible on the arriccio or the new intonaco.
Spolvero (pouncing)
step 03
Use a blind stylus to scratch additional lines or details into the plaster. This leaves an indentation without pigment, a technique Raphael used extensively.
Tip — This is done on the wet or semi-wet plaster to create subtle guides or textures.
Blind stylus

first pass

step 04
Apply a thin, smooth layer of fine plaster (intonaco) to the section to be painted that day (the giornata). The size of the giornata depends on the complexity; a face might take a whole day.
Tip — Only apply as much plaster as can be painted within 7-9 hours.
Giornata
step 05
Begin painting within one hour of applying the intonaco. Mix alkaline-resistant pigments with water (no binder) and apply to the wet plaster.
Tip — Work quickly. The plaster dries in 10-12 hours, and painting must stop two hours before drying.
Buon fresco

refining

step 06
While the plaster is still wet, scrape indentations into specific areas, such as the eyes, to increase the illusion of depth and make them appear more pensive.
Tip — This technique is specifically noted for the eyes in The School of Athens.
Plaster scraping

finishing

step 07
Allow the giornata to dry completely. The carbonatation process will fix the pigment into the lime crust. If mistakes were made, the intonaco must be removed and redone, or corrections made a secco (on dry plaster) later.
Tip — Do not attempt to paint buon fresco on dried plaster; it will not adhere properly.
Carbonatation

critical techniques

Buon Fresco

Painting with water-mixed pigments on wet lime plaster. The pigment becomes an integral part of the wall through carbonatation. This requires speed and precision as mistakes are difficult to correct.

Giornata

Dividing the fresco into daily sections based on the amount of plaster that can be applied and painted in one day. Seams between giornate may be visible.

Blind Stylus

Scratching lines into the plaster to create indentations without visible marks. Raphael used this extensively for refining poses and details.

Plaster Scraping

Scraping wet plaster to create depth, particularly used for the eyes in The School of Athens to make them appear sunken and pensive.

common pitfalls

→Painting on plaster that is too dry: Buon fresco requires the plaster to be wet. If the plaster dries, the pigment will not fix and will flake off (Source 3).
→Working too slowly: The artist has only 7-9 hours of working time per giornata. If the plaster dries before completion, the unpainted intonaco must be removed (Source 1).
→Using non-alkaline pigments: Pigments must be resistant to the high pH of lime plaster, or they will degrade (Source 3).
→Ignoring the giornata seams: Large frescoes are done in sections. Failing to plan the giornata boundaries can lead to awkward seams or incomplete figures (Source 1, Source 3).

what the sources don't tell us

Where the corpus is silent, we say so rather than guess. These are the gaps a complete recreation guide would normally cover that our source passages don't.

·Specific pigment recipes for The School of Athens are not provided in the sources, only general alkaline-resistant pigments.
·The exact layout of the figures and architectural details in The School of Athens is not described in the sources, so visual recreation relies on external knowledge not cited here.
·The specific role of Raphael's workshop assistants in the execution of this particular fresco is not detailed, though it is known he had a large workshop (Source 7).
·The use of a secco techniques for specific details in this work is not explicitly detailed in the sources, though it is mentioned as a possibility for corrections (Source 1).

cross-referenced from

Named facts about this artwork and artist were checked against these reference pages.

Wikipedia: Fresco — Fresco — part 2↗
- Fresco — part 2 — applied to Arriccio, sinopia, spolvero, giornata, plaster scraping for eyes.
Wikipedia: Fresco — Fresco — part 1↗
- Fresco — part 1 — applied to Buon fresco definition, chemical process of carbonatation, no binder required.
Wikipedia: Buon fresco — Buon fresco — part 1↗
- Buon fresco — part 1 — applied to Durability, alkaline-resistant pigments, giornata definition.
Wikipedia bio — Raphael — part 4↗
- Raphael — part 4 — applied to Influence of Leonardo, pyramidal composition, sfumato modelling.
Wikipedia bio — Raphael — part 5↗
- Raphael — part 5 — applied to Use of cartoons, blind stylus, extensive preparatory drawings.
Wikipedia bio — Raphael — part 7↗
- Raphael — part 7 — applied to Workshop size and collaboration.