Baroque and Rococo: movement in stone, then froth in plaster

The Renaissance and the Baroque use the same kit of parts. Columns, pediments, round arches, entablatures, domes, coffering — nothing in the Baroque toolbox would have puzzled Alberti. This is why lists of motifs are useless here, and why people get it wrong. The difference is not what the elements are but what they do. A Renaissance façade sets its elements out side by side on a flat plane, evenly, so you can count them. A Baroque façade makes them move.

The wall in motion

Go and stand at the corner of the building and sight along the front. If the wall stays in one plane, you are in the Renaissance or in some later classicism. If it swings away from you, comes back, and swings away again — and the cornice bends obediently with it — you are in the Baroque, and the date is almost certainly between 1620 and 1760.

Borromini’s San Carlo alle Quattro Fontane in Rome, begun 1638 with the façade finished in 1665–1667, is the type specimen: concave, convex, concave along the lower storey, every horizontal following the curve. Pietro da Cortona pushed a convex porch out into the tiny piazza at Santa Maria della Pace. The plan follows: where Renaissance ideal geometry uses circles, squares and Greek crosses, the Baroque prefers the oval, which has a long axis to pull you towards the altar while still feeling centred.

Three more habits follow from the same impulse:

Graded relief. Relief builds towards the central axis — flat pilasters at the outer bays, engaged half-columns next, free-standing columns at the door — concentrating shadow where the architect wants your eye. Maderno’s front for Santa Susanna (1603) established the formula.

The broken entablature and pediment. Pediments are opened at the apex, interrupted at the base, scrolled, or nested one inside another. Cornices ramp up and double back. A Renaissance pediment is a whole triangle; interrupt it and you are past 1600.

The giant order spanning two or three storeys, inherited from Michelangelo and now used constantly, because it lets a façade be read as one gesture rather than a stack of floors.

Bernini against Borromini

They worked the same streets in the same decades and are the most useful contrast in the whole period.

Gian Lorenzo Bernini is a sculptor first, and his architecture is stagecraft. The baldacchino in St Peter’s (1624–1633) puts four twisting bronze solomonic columns — the barley-sugar spiral, supposedly copied from the Temple in Jerusalem — under a canopy at the crossing. The colonnade of the piazza (1656–1667) is two arms of Tuscan columns embracing the crowd. In the Cornaro Chapel, architecture, sculpture, concealed daylight and marble spectators combine into what he called a bel composto, a beautiful whole. Bernini is rich, warm, theatrical and fundamentally simple in geometry.

Francesco Borromini is a geometer and an outsider. His plans are generated by triangles and interlocking circles. Sant’Ivo alla Sapienza sits on a six-pointed star and ends in a spiral lantern. His San Carlo dome is an oval coffered with interlocking octagons, crosses and hexagons that shrink towards the light. His material is mostly plain white stucco. Where Bernini persuades you with spectacle, Borromini disorients you with geometry.

Where the Baroque goes next

Central Europe, roughly 1700–1770, takes Italian ideas further than Italy did. Fischer von Erlach’s Karlskirche in Vienna (1716–1737) plants two Trajanic columns in front of a domed church. Balthasar Neumann’s pilgrimage church at Vierzehnheiligen (1743–1772) has essentially no straight wall: a nave of interlocking ovals, with the main shrine floating in the middle of the space rather than at the east end. The Asam brothers in Munich and the Dientzenhofers in Prague work the same way. The interiors are white, pale pink and gold, far lighter than anything Roman, and the fresco makes the vault seem to lift off its supports.

Iberia and its empire concentrate rather than move. The Churrigueresque of about 1690–1750 leaves the wall plain and detonates the ornament in one panel: a retablo façade, the language of a carved altarpiece transposed to the outside. See the Obradoiro front at Santiago de Compostela (1738–1750), or Narciso Tomé’s Transparente in Toledo Cathedral (1721–1732), a hole cut in a Gothic vault to spotlight a marble and gilt cascade.

England gets a short, sober, Protestant Baroque, about 1690–1730, working in mass and silhouette rather than curves. Christopher Wren’s St Paul’s (1675–1710) has a two-storey portico of paired columns and a triple-shell dome, but a Roman architect would find it chaste. Nicholas Hawksmoor is the strange one — Christ Church Spitalfields (1714–1729), St George-in-the-East, St Mary Woolnoth — with exaggerated keystones, primitive Tuscan orders, blank masonry and violent shifts of scale. John Vanbrugh at Castle Howard (from 1699) and Blenheim (from 1705) builds like a scene-painter turned castle-builder: huge, blocky, dramatic in outline.

Rococo: a different problem

Rococo, roughly 1720–1770, is not “late Baroque” in the sense of more of the same. It is lighter, smaller, secular and, decisively, an interior style. It grew out of the Parisian hôtel particulier, where the client wanted rooms to be comfortable and amusing rather than overwhelming, and it lives in boiserie — carved and painted wall panelling — in plasterwork, mirrors and furniture.

The tells are consistent. White and gold, or pale blue, green, pink; almost never the dark marbles and heavy gilding of Rome. The corner between wall and ceiling dissolved into a curved cove, so the room has no hard edges. Mirrors set opposite each other and over the chimneypiece, doubling the candlelight. Rocaille — asymmetric shell-and-rock scrollwork — which is where the name comes from, and which is the single best dating tool: Baroque ornament is exuberant but stays symmetrical about an axis, while a Rococo cartouche is deliberately unbalanced. The orders largely vanish, or shrink to slender fluted strips.

Boffrand’s Salon de la Princesse at the Hôtel de Soubise (1737–1740) is the textbook room; Cuvilliés’s Amalienburg hunting lodge at Nymphenburg (1734–1739) is the finest, with its silver-on-blue Hall of Mirrors. In southern Germany the style crosses into churches — Zimmermann’s Wieskirche (1745–1754) is pink, white and gold with no right angle in sight — which is why German Rococo and German late Baroque shade into each other.

Feature	Baroque	Rococo
Where it lives	Façade, plan and interior	Interior surfaces, furniture
Palette	Dark marbles, bronze, deep gilding	White, gold, pastel blue, pink, green
Scale	Monumental, public	Domestic, intimate
Ornament	Exuberant but symmetrical	Asymmetric rocaille, shells, C-scrolls
Orders	Present and emphatic, often giant	Absent or reduced to slender strips
Light	Directed, concealed, contrasted	Even, bright, multiplied by mirrors
Mood	Awe, persuasion, religion	Wit, pleasure, conversation
Dates	c. 1600–1750	c. 1720–1770

Note the overlap in dates. A palace begun in 1730 can have a Baroque exterior and Rococo rooms, and often does. Judge the outside and the inside separately, and do not let one override the other.

Traps

Revivals. Edwardian Baroque, about 1895–1914, rebuilt Wren and Vanbrugh for imperial civic work: crisp Portland stone, paired giant columns, big domes. The tells are razor-thin machine-cut joints, large single-pane sashes and a scale that implies a steel frame. Second Empire and Beaux-Arts work does the same thing in France and America.

Regional lag. Latin American Baroque runs strong well past 1780; Portugal’s Joanine phase and Brazil’s Minas Gerais churches are at their height when Paris has already moved to Neoclassicism.

Rococo and Neoclassical in the same building. French interiors of the 1760s often sit in an older shell, and a room can be re-panelled a generation later. Symmetrical, thin, straight-lined ornament with paterae and husk swags is Neoclassical, not Rococo, even when it is white and gold.

How to spot it in ten seconds