Pakistan is a federal parliamentary republic.
Apsley Pellatt , -LRB- 1763 -- 21 January 1826 -RRB- was an English glass manufacturer .. Apsley Pellatt. Apsley Pellatt. Apsley Pellatt was the son of Apsley Pellatt -LRB- 1736 -- 1798 -RRB- and Sarah -LRB- nee Meriton -RRB- Pellatt .. Apsley Pellatt. Apsley Pellatt. At St Andrews church , Holborn , London on 20 March 1788 he married Mary Maberly , daughter of prosperous manufacturer Stephen Maberly and sister of John Maberly .. Holborn. Holborn. London. London. John Maberly. John Maberly. They had 15 children , of which Apsley Pellatt was the eldest son .. Apsley Pellatt. Apsley Pellatt. Sometime around 1790 he bought the Falcon Glass House in Blackfriars , London which had been making glass since 1693 .. London. London. Blackfriars. Blackfriars, London. In 1807 he took out a patent for the manufacture of lights -LRB- round lens-shaped windows like portholes -RRB- to allow natural light to illuminate the interiors of dark rooms , especially the holds of ships .. His eldest son , also called Apsley , joined the business in 1811 and took it over completely on Apsley Snr 's death in 1826 , renaming it Apsley Pellatt & Co. .. Apsley Pellatt. Apsley Pellatt. A younger son , Frederic , also joined the company in due course .. Apsley Snr was buried with his wife in the Cribbe family vault in Bunhill Fields , London .. London. London. Bunhill Fields. Bunhill Fields. Pellatt was related to Canadian financier Sir Henry Pellatt .. Henry Pellatt. Henry Pellatt