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  • image SM volume 26, p. 13

Reference number

SM volume 26, p. 13


Reconstruction of the Pantheon as completed by Agrippa, Marcus Aurelius and other emperors


4 Plan


1 inch to about 37 feet (drawn scale; same as for 1)


By Gibbs in pen and brown ink over pencil, on plan, A. and B., and below plan at foot of p. 13, A. Plan of ye Temple, shewing ye portico which was built by Agrippa, as likewise the addtions and imbellishments, that wer made in the inside of it, by Marcus Aurelius and other Emperours. / B. The Skey light allways standing open.

Signed and dated

  • 1740s

Medium and dimensions

Pen and grey ink with grey wash over pencil, and with brown ink for letters and dotted plan of aperture; on laid paper; 197 x 149.


James Gibbs


none visible


The plan is taken from Fontana's on p. 465 of Il Tempio Vaticano, but the internal circuit of steps is omitted. Gibbs has also modified the reveals of the door and has added recesses within reveals of the internal wall, beyond the door. He has also eliminated to small external flights of steps which connected the internal triangular flights behind the portico walls with the adjacent wall of the rotunda. Another feature that he removed from Fontana's plan, section and elevation of the Pantheon in Imperial times was an external podium beneath the side columns of the portico, which Fontana shows in plan as a narrow wall projecting beyond the line of the column bases on each side.



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