Earl of Oxford and Earl Mortimer
Arms: Or a bend cottised Sable.
Crest: A castle Argent tripled towered with a demi-lion Gules issuing out of the middle tower.
Supporters: Two angles proper the habit and wings displayed Or.
Motto: Virtute et Fide.
Robert Harley was created Baron of Wigmore, Earl of Oxford and Earl Mortimer by Letters Patent in 1711, with a special remainder, failing heirs male of his body, to those of his grandfather, Sir Robert Harley KB. Robert died in 1724 and his only son, Edward, died in 1741 without male issue when the titles passed to a cousin. The titles became extinct in 1853 following the death of the 6th Earl.
Image courtesy of Richard Lichten