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Red Sea

Ancient name
Arabicus Sinus or Rubrum Mare, Arabicus Sinus/Rubrum Mare
Modern name
Red Sea
The Red Sea tends to be easy to find on medieval maps because it is often colored red; this is true of about two-thirds of the Red Seas in the Sfera maps. All Sfera maps use a toponym like Mare rosso to label the Red Sea; while some ancient sources refer to it as Sinus Arabicus* (the Arabian Gulf), La sfera's maps only use that term to refer to the Persian Gulf. See also Arabian Sea and Indian Sea. (*Isidore of Seville, Etymologies 13.17.1).
Coordinates
19.0, 39.5
World Historical Gazetteer
https://whgazetteer.org/places/portal/8364326

The toponym Red Sea appears in La Sfera in the following places:

Click on any citation to view it in context in the edition.

Map of the location P112

Variant spellings of Red Sea in Sfera manuscripts

Variant Manuscripts
.M. rosso Morg
[...]rosso Marc1
[mare rosso] Par1
[mare] rosso Fn6
M[are] Ros[s?]o NYPL2
m[are] rosso Urb1
M[are] ROSSO Chig2
M[are] Rosso NYPL2, Ricc17
M[ARE] ROSSO Pnc5
Ma[re] rosso BL02
Mar rosso MB, Marc1, To2, Vat2
mar rosso Ashb2, Bal, Con4, Cs1, Laur3, Magl2, Med2, NYPL3, Pal8, Ricc12, Ricc15, Ricc6, Spe
Mar Rosso Ricc15
Mare [rosso] Tre
MARE R[...] Med3
Mare ro[...] BL01
MARE ROS[...] Pnc5
MARE ROsO Ashb3
Mare ross[o] Ricc6
Mare Rosso Fn9, He1, Med1, Par3, Par4, Pnc4, Ricc11, Ricc14, Ricc9, Urb2, Vat3
mare rosso Ashb4, Barb3, Barb4, Borg, Bos, Chig1, Con1, Con3, Fn6, Fn8, Fn9, He2, Laur5, Luc2, Med2, NB, New, Pad1, Pal5, Par1, Pnc3, Ricc13, Ricc9, Ro2, Urb1
Mare rosso Ashb7, Bal, Bos, Cap1, Con1, Con3, He1, Laur5, Luc2, Marc2, Med1, Par3, Parm2, Pnc4, Ricc14, Ricc8
MARE ROSSO BL01, Med3, Wie1
MARE Rosso Fn8
mare Rosso Fn12, Fn3, Ricc11
Mare rubrum Clas2
mare rubum Fn3
marerosso Ricc8
maroso Magl4
marosso Con4
Marosso Cap1
Marre rosso Fo
marroso ME2
marrosso Ricc6
Suggested citation
Beneš, Carrie. “Red Sea.” Gregorio Dati’s La sfera = The Globe: A Digital Edition, November 13, 2026. https://la-sfera-staging-a8db029690a6.herokuapp.com/toponyms/red-sea/.