This comes as a surprise to me, because acc. to a document posted by
Wolfgang some time ago (msg. 2175), the Emmericher Protokoll (Sept.
23, 1818) states:
(...)Die Abgrenzung zwischen den beiden Königreichen ist durch die
Hauptströmung der Mosel bis zur Mündung der Sauer bei Wasserbillig
gebildet.
In diesem Abschnitt waren auf einigen Punkten Pfähle aufgestellt,
welche gem. Art. 28 des Vertrages von Aachen die die Grenze
bestimmende Hauptströmung des Flusses, und einige Inseln, die sich
dort befinden, anzeigten: (follows a list of markers, some on islands)
I read this as follows: the border is the main course of the river,
so all islands in the river are either German or Luxembourgish. There
is no mention of the condominium here, but that doesn't mean it
didn't exist. But then the condominium was the main course of the
river, so the wider channel between an island and the bank, leaving
out the narrower channel. Now I can't believe this was the case.
Either these islands are now also part of the condominium (which they
weren't in 1818), or the condominium didn't exist in 1818. And acc.
to your source it _did_ exist! So something happened along the way!
Which I think is the case, because the small piece of land between
the lock and the weir at Apach/Schengen/Perl is definitely part of
the condominium. Now this piece of land possibly didn't exist in
1818, but some other islands apparently did.
Furthermore, I am still in confusion over the purpose of the boundary
markers, as they are not on the border, but are (acc. to Wolfgang in
another posting) only indirect "target" markers ("indirekte
Vermarkung, auch Abzielsteine"). These markers are useful to measure
the exact location of the boundary when this boundary is in the
middle of the river, but their purpose completely escapes me when
there are not one, but two boundaries, formed by the river banks, and
anyway well marked on bridges by these little shields.
So not all is clear to me yet, but we are definitely heading towards
a good and unequivocal understanding of delu.
So thanks for the information.
Peter S.
--- In BoundaryPoint@y..., Mats Hessman <blofeld_es@y...> wrote:
> Friends,
>
> I have procured a copy of the "Grenzvermessung
> Deutschland-Luxemburg" from the Landesvermessungsamt
> of Rheinland-Pfalz.
>
> I don't know if this is old news by now, but it
> seems that the condominum stems from the Grenzvertrag
> vom 26. Juni 1816 zwischen die Niederlande und Preussen.
>
> The first paragraph of Article 27th says (my translation):
>
> Everywhere where waterways constitute the border,
> shall the waterway belong equally to both states,
> unless otherwise is specifically stated.
>
>
> In an interesting note (note 87, page 53) the condominium
> situation is compared to other such situations, and the
> border between Germany and Austria is mentioned.
>
> Is there another condominium down there? Does anyone
> know? Should we hunt for it?
>
> Mats