Noun
(heraldry) A leg, of an animal or person.
(often in the plural) Synonym of jambeau (“a greave”).
Source: en.wiktionary.orgComposer and singer Philibert Jambe de Fer (c. 1515 – c. 1566) was the only French author of the 16th century to write about the recorder, in his "Epitome musical." Source: Internet
This period also produced the first extant books describing the recorder, including the treatises of Virdung (1511), Agricola (1529), Ganassi (1535), Cardano (c1546), Jambe de Fer (1556), and Praetorius (1619). Source: Internet