I came across a Pietro Vesconte atlas from 1318 that has more than one coincidental depiction with what i see in quire 13.
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Here are the coincidences:
1. I believe quire 13 starts at the southwesternmost point of Europe on f76v Vesconte's depiction starts (ends, but if you look upside down, as we do above, it begins) at that promontory, in fact it does not even show the northern part in that map but continues it on another, so you are forced to start there for lack of other information.
2. I believe the first part (Europe) ends where it begins by going by river to the Baltic sea from the Black Sea, passing through into the North sea, then hugging the shore, which is depicted in the vms as a line on f82v, which takes a 180 turn, then does a little jog. In the sequence above we don't see the Baltic sea either, but the shore looks very straight to start, then curves, then the 180 turn is the Bay of Biscay, then the jog is clearly seen as the return to Lisbon, where the other map had started.
3. I believe it goes around again and shows the Alborean and Balearic seas on the bottom of f82v. This is like starting again with the first map after seeing the northern map.
4. The top of You are not allowed to view links.
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5. The west side of the Italian peninsula is depicted as horizontal in the vms. Note the jagged protrusions analagous to the rock piles at the top of the vms portrayal, these are the various promontories, similar to the one we started from on f76v, but smaller. Count them, there are 7 points.
6. The east side of the Italian peninsula is also depicted horizontally, but below instead of above the west side. Here the promontories are indicated by buckets (which stand for river deltas and the sediments they produce which become like promontories over time also. Again, count them there are four, if you include the one not shown under the nebuly line, itself a coincidence since on You are not allowed to view links.
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Login to view. a nebuly line is found in similar vicinity. The eastern side of the Adriatic has been blanked out, the information comes on You are not allowed to view links.
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7. None of the items in the third map are included per se although Sicily is hidden inside Mezzogiorno, where the boot would be, which makes sense insofar as the Kingdom of the two Sicilies as the two were known together.
8. You are not allowed to view links.
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Login to view. is analogous to the top chart. The middle chart has no analogous imagery that i have discerned.
9. The bottom of You are not allowed to view links.
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Furthermore i found that most Atlases started with the Black Sea, and worked their way back to the Atlantic, as this one does. However they are south oriented, so that would turn it the other way if you looked at it north up. There was one atlas that did it in the opposite direction, more in keeping with the vms, in 1321, which is currently held in Switzerland. The other publication that contained maps that followed the west to east route was
the You are not allowed to view links. Register or Login to view.Crucis compiled by Marino Sanudo. R Sale has mentioned a copy, there were many.
This is a mappa mundi included. With the exception of the heart shaped area near the top, it matches the ecumene of quire 13 quite well. The empire ring of You are not allowed to view links.
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The publication name in English is literally "The Book of Secrets of the Faithful of the Cross" and is mostly a proposal for continuing the crusades, mostly against Muslim areas of the near east and Africa, by way of historical political and trade information regarding places and a plan of attack which leads down the Nile. From wiki:
Not only Mediterranean seaports, but the lakes of North Italy and central Europe, and the You are not allowed to view links.
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Login to view. ports, are enumerated as nurseries of crusading mariners and marine skill. Finally, after the conquest of Egypt, Marino designs the establishment of a Christian fleet in the Indian Ocean to dominate and subjugate its coasts and islands. He also gives a sketch of the trade-routes crossing Persia and Egypt, as well as of the course of Indian trade from You are not allowed to view links.
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Much of this is included in what i see in the vms as well, with the exception of Coromandel, but this might be an empire ring inclusion. The ideas of Muslims being the ones from whom the secrets are to be kept seem in keeping with the vms spindles pointing out places controlled by same.
I thought it enough coincidences to note them. What do you think?