The large original 1880s arch stained glass window, situated above the main staircase and believed to be the work of Lyon, Cottier &amp; Co Sydney, has also been fully restored. It depicts, above, King John of England signing the Magna Carta on 15 June 1215 at Runnymede, near Windsor. Below is King Henry V of England following his victory against the numerically superior French army at the Battle of Agincourt in 1415 (which boosted English morale and prestige, crippled France, and started a new period of English dominance in the Hundred Years' War).