Sir Lewis is Paddy’s father. A couple of pictures from the Geological Society website.
This delicately embroidered “chain of office” was once the property of the Director of the Indian Geological Survey, Sir Lewis Leigh Fermor (pictured). It was presented to the Society by Richard Bateman, former Executive Secretary, to whom it had passed through Lady Fermor’s executor, the late Prof. Bob Savage, on her death.
Sir Lewis Leigh Fermor wikipedia page.