Complex sentence: This event was commemorated by the construction in 1730 of the obelisk, in height, standing on the highest point in the Park, it is located over half a mile to the south and on axis with the centre of the House.
Split into simpler sentences: This event was commemorated by the construction in 1730 of the obelisk, in height, standing on the highest point in the Park. It is located over half a mile to the south and on axis with the centre of the House.