Attrib. Hoppner / Reynolds Portrait of a Noblewoman

attributed HOPPNER, John, (English, 1758-1810) or REYNOLDS, Joshua, (English, 1723-1792): Three quarter portrait of a noblewoman,there are two attributions to the artist and sitter on labels verso, one being Lady Hoppner by Hoppner, the other states Mary Horneck and makes the artist attribution to Reynolds (Joshua), Oil/Canvas, no visible signature, 36" x 28", framed with attribution plaque 44.75" x 36.75". Condition: Craquelure, a few spots of inpaint, less than 2%.