This drawing/study can be stylistically situated around Rubens as well as Van Dyck.
Another oilpaint-sketch, attributed to Rubens (*) shows a comparable composition but mirrored.
* Justice" ,Whereabouts unknown, Rubens, CRLB, Part XII, Nils Büttner, Allegories and Subjects from Literature, p. 166 (N°34)
Our drawing seems to be made for (or after) a sculpture, this can be deducted because of the niche Justice is portrayed in.
In terms of style, it's reminiscent of the known sketchbook in Chatsworth (Devonshire Collection, authorship discussed)