Bend (heraldry)
In heraldry, a bend is a band or strap running from the upper dexter (the bearer's right side and the viewer's left) corner of the shield to the lower sinister (the bearer's left side, and the viewer's right). Authorities differ as to how much of the field it should cover, ranging from one-fifth (if shown between other charges) up to one-third (if charged alone). The supposed rule that a bend should occupy a maximum of one-third of the field appears to exclude the possibility of two or three bends being shown together, but contrary examples exist. Outside of heraldry, the term "bend (or bar) sinister" is sometimes used to imply ancestral illegitimacy.