Since the verses are about robbers, and the Shah of Iran gave a breeding pair of Kashmiri Goats to Queen Victoria, from which was bred a large herd, which was split at least once to send some to The Great Orme, in Llandudno, I wonder if it was a hunted (or poached) Kashmiri goat which was referred to? The males are beautiful, and very long horned and could well be referred to as The Beauty of Kashmir (Cashmere). Also, the hunting fraternity was always keen for different 'sport', as they thought of it - and some
certainly took up goat hunting in Scotland. There are feral goats near Lynton in Devon, I wonder if one of the 'great houses' in Cornwall, might have acquired some Kashmiri goats, and used them for hunting, or had a prize specimen poached? (by these 'robbers')