The star of David is a geometric figure, comprising two equilateral triangles, voided and braced. Alternatively, it may be described as a mullet of six points voided and interlaced. It’s also called a “shield of David”, a “Mogen David”, or a “seal of Solomon”.
The star of David appears in Jewish texts as early as the 11th Century (in the Leningrad Codex), and as a decoration on gravestones and synagogues; in modern times, it has been adopted as a universal symbol of Judaism. As an heraldic charge, it’s found in the arms of Compan, 1548 [Vigil Raber’s Armorial of the Arlberg Brotherhood of St. Christopher, fo.740]. For related charges, see knot, polygon, shield.
Judith bat Avram of York bears: Quarterly azure and purpure, in the second quarter a shield of David argent and Or.
Israel ibn Jacob bears: Paly wavy of twelve sable and argent, a star of David Or.
Moshe Mashughannah bears: Or, a star of David azure within and interlaced with another vert.