ACADEMY OF SAINT GABRIEL REPORT 1483
http://www.s-gabriel.org/1483
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From: "Brian M. Scott" 
16 May 1999

Greetings from the Academy of S. Gabriel!

You explained that it is not known where the Aldrevandin Group of
glasses, dating from the late 13th and early 14th centuries, was
made, the likely possibilities being Jerusalem, Venice (at the isle
of Murano), and the German glass-making centres, especially
Konstanz.  You then asked whether the known makers' names
<Aldrevandin>, <Petrus>, and <Bartolomeus> were evidence for or
against any of these possibilities.

The names <Petrus> and <Bartolomeus> are only moderately helpful. In
German-speaking Switzerland the names <Petrus> and <Peter> were used
by laity as early as the late 11th century.  <Bartolomeus> came into
use there a little later, but it is found (in a variety of slightly
different spellings) amongst both ecclesiastics and laity during the
12th century. [1]  Both <Petrus> and <Bartholomeus> undoubtedly go
back to Roman times in Italy, but we can say for sure that both are
found in Pisa in 1228, and <Piero> and <Bartolomeo> are among the ten
most common men's names in early-15th century Florence. [2, 3]  Thus, 
neither name points strongly toward either European site at the 
expense of the other.

It is possible that they are evidence against the Jerusalem
hypothesis.  Except for the brief interval from 1229 to 1244,
Jerusalem had been in Muslim hands since 1187. [4]  The names
<Petrus> and <Bartholomeus>, on the other hand, are strongly
associated with the Christian tradition.  But lacking a very
detailed knowledge of Jerusalem culture c.1300, we cannot judge the
strength of this argument.  <Aldrevandin>, however, is another matter
altogether: although our evidence is a little indirect, it points
fairly clearly at Venice. 

The Italian surname <Aldobrandi> is of patronymic origin from the
given name <Aldobrando>, which may conflate as many as three
Germanic given names: <Aldeprand>, <Hildebrand>, and perhaps also
<Adalbrand>. Since the variants of this surname include <Aldrovandi>
and <Drovandi>, we may safely assume that <Aldrevandin> is similarly
a variant of the diminutive form <Aldobrandini>, the surname of the
famous 16th c. Florentine family.  Since the modern surname
<Aldrovandi> is especially common in Emilia, the region just south
of Venezia Euganea, a medieval Venetian <Aldrevandin> seems quite
likely. [5, 6]  Further evidence for the possible comes from Venetian 
Crete, where we find <Betto Alevrandinus> 1375 and other similar 
variants of the same byname. [7]

Despite its undoubted German origin, the name must be considered
Italian. The suffix <-in> is definitely Romance, and the combination
of metathesized /r/ and substitution of /v/ for /b/ is unusual
enough to suggest a single location of origin, presumably in northern
Italy. It seems very likely that the man in question was Italian;
whether he actually worked at Venice rather than at, say, Konstanz
of course cannot be determined from the onomastic evidence.

Josh Mittleman supplied some of the evidence on which these 
conclusions are based.  We hope that this letter has been helpful; if 
anything is unclear, please do not hesitate to write again.

For the Academy,

Brian M. Scott

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References:

[1] Socin, Adolf.  Mittelhochdeutsches Namenbuch. Nach
oberrheinischen Quellen des 12. und 13. Jahrhunderts (Basel: Helbing
& Lichtenhahn, 1903; Hildesheim: Georg Olms Verlagsbuchhandlung,
1966); pp. 66, 77.

[2] Salvatori, Enrica.  '4300 Citizens of Pisa Swear to Maintain the
Alliance with Siena, Pistoia and Poggibonsi' (WWW: Richard Hacken,
1997).
http://library.byu.edu/~rdh/eurodocs/italia/pisani.html

[3] Ferrante laVolpe.  'Men's names from Florence, 1427' (WWW:
Self-published, 1996).
http://www.s-gabriel.org/names/ferrante/catasto

[4] Barber, Richard.  The Knight and Chivalry (New York: Harper & 
Row, 1982); p. 223.

[5] De Felice, Emidio.  Dizionario dei Cognomi Italiani (Arnoldo
Mondadori Editore, 1978); s.n. Aldobrandi.

[6] Brechenmacher, Josef Karlmann.  Etymologisches Woerterbuch der
Deutschen Familiennamen (Limburg a. d. Lahn: C. A. Starke-Verlag,
1957-60); s.n. Albrand(t).

[7] McKee, Sally.  Wills from Late Medieval Venetian Crete
1312-1420. 3 vols. (Washington, D.C.: Dumbarton Oaks Research
Library and Collection, 1998, ISBN 0884022455).