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GIOVANNI PLATEARIO _ 247 
of chronological arrangement by Meyer (3: 480); mentioned as 
“Joannes Platearius, first of a family of physicians, whose Practica 
or medical compendium was several times printed,” Enc. Brit. 
art. Medicine. Haller, Meyer and Camus allude to the Practica 
vaguely ; “la Practica di Giovanni,” Camus, 6, n. Sometimes it 
is confused with the Serapionis de practica which was printed in 
1488 and was bound with the Circa instans, the Circa tinstans 
itself appearing in the reprint of 1497 as /. Platerit practica brevis ; 
but seemingly the 7, Platerii there referred to is Giovanni Platearto 
III. The Practica of Giovanni is perhaps the Sa/ernitan Medical 
Practice cited, when writing c. 1256, by Bartholomaeus Anglicus, 
who enumerated, fol. 251, among his authorities, not only Patea- 
rius medicus (meaning the Circa instans of Matteo Plateario II), but 
also a “ Salernitanus Practicus” (by Wynkyn de Worde in 1495 
printed Sa/vicanus Practicus). 
Two Platearian works are catalogued by the British Museum 
as ‘‘ Joannes Platearius,” and may have been written by Giovanni I ; 
the Expositio Platearti, of which the British Museum has two folio 
copies of 1495 and 1497, bound with the ‘‘ Antidotarium Nicolai,” 
and the “ Canons”’ of Mesue ; and 2d, the “ Regu/ae urinarium,” in 
Renzi’s Collectio Salernitana, 185 2.* 
2. Sapiens Matrona, the Gelehrten Salernitanerin,} or Sapient 
Matron of 1045; claimed by Renzi to have been wife of Giovanni 
I; and to have been identical { with Trotula (whom Meyer con- 
sidered distinct and a generation later) ; was doubtless one of the 
nameless mulieres Salernitanae § called by Camus /e medichesseé 
Salernitane.|| She is called guandam sapientem matronam by 
Orderic, and is the one most skilful matron of his translator Fores- 
ter. When, perhaps 1043-1045, the Norman warrior-councillor 
and medical adept, Rodolf Mal Corona, was pursuing medical 
studies at Salerno, she, the widow then perhaps of Giovanni I, was 
his only rival in knowledge. 
* See Camus, L’ Opera Salernitana, 8 n. (Modena, 1886). 
¥ Meyer, 3: 454. 
tShe might instead have been the A/eisterin named Genesta Cleopatra; S€é Pp. 
220. 
2 So cited, as familiar but nameless medical authorities and practitioners by Saler- 
hus often, and also by the Domian reviser of Matteo Plateario, both about 1160. 
| Camus, 16. 
