Question: Northcote's head chef was born in what year?

Context paragraphs:
Hell's Kitchen (U.S. season 17): The seventeenth season of the reality series "Hell's Kitchen" (subtitled as "Hell's Kitchen All Stars") began airing on September 29, 2017 on Fox.  This season marks the first in "Hell's Kitchen" history to have an all star edition as sixteen former contestants return to compete once again, and the winner of this season will receive the position as head chef at the first-ever Gordon Ramsay Hell's Kitchen Restaurant at Caesar's Palace in Las Vegas, Nevada.  All of the returning chefs made it onto the Black Team in their respective seasons.  Gordon Ramsay returns as host and head chef, Season 10 winner (and Season 15 sous-chef) Christina Wilson returns as the Red Team's sous-chef, and British chef and Masterchef judge James "Jocky" Petrie becomes the Blue Team's sous-chef.  Marino Monferrato returns as the maître d'.

Northcote (hotel): Northcote is a hotel and restaurant in a 19th-century manor house in Langho, Lancashire, England.  The restaurant has held a Michelin star since 1996 Michelin Guide.  Chef Patron Nigel Haworth and Executive Head Chef Lisa Allen focus on "local dishes based on regional ingredients".

Hell's Kitchen (U.S. season 16): The sixteenth season of the American competitive reality television series "Hell's Kitchen" premiered on September 23, 2016 on Fox.  Event Chef Kimberly-Ann "Ryan" Ryan from Traverse City, Michigan won the competition and a head chef position at Yardbird Southern Table & Bar at The Venetian Las Vegas.  In addition to Gordon Ramsay, who returned as host/head chef, Marino Monferrato and Aaron Mitrano returned as maitre d' and blue kitchen sous chef respectively while Andi van Willigan-Cutspec resumed her role as sous chef for the red team after Season 10 winner Christina Wilson filled in for her in the previous season while she got married.  This was also the first season since Season 13 to take a hiatus due to Fox's coverage of the 2016 World Series in addition to the holiday breaks.  The remaining episodes of the season were moved to Thursday nights on January 5, 2017 as part of the network's midseason schedule.

Hell's Kitchen (U.S. season 14): Season 14 of the American competitive reality television series "Hell's Kitchen" premiered on March 3, 2015 on Fox.  The prize is a head chef position at Gordon Ramsay Pub & Grill in Caesars Atlantic City.  Gordon Ramsay returned as head chef with Andi Van Willigan and James Avery returning as sous chefs for both their respective kitchens as well as Marino Monferrato as the maître d'.  Executive chef Meghan Gill from Roanoke, Virginia, won the competition, thus becoming the fourteenth winner of "Hell's Kitchen".

Hell's Kitchen (U.S. season 13): Season 13 of the American competitive reality television series "Hell's Kitchen" premiered on September 10, 2014 on Fox.  The prize was a head chef position at Gordon Ramsay's Pub & Grill at Caesars Atlantic City.  Gordon Ramsay returned as head chef and Andi van Willigan and James Avery returned as sous chefs.  However, Jean-Philippe Susilovic did not return as maitre d' and was replaced by Marino Monferrato.  It also marks the first time since 2010 that two seasons of "Hell's Kitchen" aired in the same year.  Kitchen Supervisor La Tasha McCutchen from Winter Haven, Florida won the competition, becoming the first winner since Christina Wilson, Holli Ugalde and Dave Levey to completely avoid nomination for elimination throughout the entire season.  This is also the first time that the series had a new narrator.

Arthur Potts Dawson: Arthur Potts Dawson (born 1971 in Camden, London) started cooking around 1990.  He started with a three-year apprenticeship with the Roux brothers, worked with Rowley Leigh at Kensington Place for two years, with Rose Gray and Ruth Rogers at the River Café for four years, Hugh Fernley-Whittingstall and Pierre Khoffman both for a year.  He worked as head chef at the River Café and went on to restyle Petersham Nurseries Cafe, re-launch Cecconi's restaurant, and to work as executive head chef for Jamie Oliver's Fifteen Restaurant.

Celebrity Head Chef: Celebrity Head Chef is the second series of TV3’s cookery series, Head Chef.  The series features Conrad Gallagher, the youngest chef ever to win a Michelin Star and stars Wagner Fiuza-Carrilho from The X Factor; Mary Burke, the mammy from Crystal Swing; Adele King (Twink); Geraldine from The Apprentice; Michael Hayes, the presenter from How Low Can You Go? ; and former model Kohlin Harris.

Hell's Kitchen (Finland TV series): "Hells Kitchen Suomi" is the Finnish adaption of British reality show Hell's Kitchen which was created by Gordon Ramsay who was also the head chef.  Top Chef Sauli Kemppainen is the head chef.  The series started airing on the 20 September 2013 on MTV3.  This version stays true to the American version with the participants and the customers not being celebrities, broadcast recorded weekly instead of being broadcast live nightly, with no presenter and just a voiceover, a challenge where the winner would win a reward and the loser facing a punishment, after dinner service, Sauli would name a winning team whereas the team who loses nominating two of their teammates for elimination and eliminations being decided by Sauli instead of the viewing public.

Lisa Allen: Lisa Allen (born 29 April 1981) is a British chef best known for being executive chef of the Michelin starred Northcote restaurant.  She was also one of four winning chefs on season five of the BBC cooking show "Great British Menu".

Stanisław Czerniecki: Stanisław Czerniecki (] ; "fl. " 1645–1698) was a Polish soldier, property manager, chef and writer, best known as the author of "Compendium ferculorum, albo Zebranie potraw" ("A Collection of Dishes"), the first cookbook written originally in the Polish language.  He was an ennobled burgher who held the titular offices of royal secretary and "podstoli " (deputy pantler) of Zhytomyr.  During much of his life he served some of the powerful magnate houses of Poland, including the Wielopolski , Zamoyski , Wiśniowiecki and Lubomirski families.  It was as head chef at the court of Prince Aleksander Michał Lubomirski that Czerniecki wrote his cookery book.  As a designer of spectacular banquets, he has been called "the Polish Vatel" by Karol Estreicher, although Czerniecki did not meet the tragic fate of François Vatel, the head chef at the court of the Grand Condé.

Supporting paragraphs: Northcote (hotel) Lisa Allen
Answer: 1981