Runner-up was GB and I international Chloe Williams (Wrexham) with scores of 71, 77, 75 and 70 for one-over 293. Alessia Nobilio, the 14-year-old Italian who had led the field through the second and third rounds, faded as the wind rose for the final round. She had scores of 73, 71, 71 and 79 for 294 but was beaten on the better last round for third place by Georgia Price (Bude and North Cornwall), 73, 72, 78 and 71 who took 3rd place.
Sophie Lamb started the final day one shot behind the leader, Alessia Nobilio, after a second-round 68 which stood up as the lowest round of the tournament.
Nobilio's two-under-par 71 in the third round increased her lead to two shots with Lamb taking 72.
There was no hint at that stage that the Italian girl, so steady to that point, was about to unravel at the conditions became tougher. But it soon became apparent that the youngster from Milan, winner of the Belgian girls' international stroke play championship after being a beaten semi-finalist in the Girls' British Championship at Harlech, had reached the end of her tether. She took 40 shots to the turn in the final round and was overtaken by Lamb who was out in 37.
Sophie had a bad start to the inward half with a bogey at the 10th and a double bogey 6 at the 12th but she steadied up with three birdies over the closing holes - a 2 at the short 12th, a 4 at the par-5 14th and a 3 at the par-4 18th. A bogey at the 15th made little difference in the final analysis.
Chloe Williams, who had shared the first-round lead with a 71, returned to her best form with a closing 70, the lowest score of the final round. The Welsh player birdied the second, third, sixth, seventh and 10th in halves of 34-36. Bogeys at the first and 18th she took in her stride.
Nobilio finished with a 79 (40-39), a gound which had no birdies, only six bogeys as she finished on two-over 294. Georgia Price matched that with her best round of the four, a 71, despite a double bogey 6 at the second and another shot dropped at the fifth.
The Cornwall player slipped up a gear with birdies at the seventh, 10th, 11th, 13th, 16th and 17th, offsetting a bogey at the 15th. Price had six birdies over her last 12 holes. She had three double bogeys over the four rounds. Six shots dropped there cost her the championship. Even three bogeys instead of three doubles at these holes would have got her into a play-off with Sophie Lamb.
English-born but Scotland-based Gemma Batty (Moffat) finished fifth on 296 with a pair of 74s on the final day. She had 2s at the 12th and 16th in her closing round, which cancelled out a double bogey 6 at the 13th.
The highest placed Irish player was Annabel Wilson (Lurgan) who finished sixth on 297 with a final round of 75 which had contrasted halves of 34 out and 41 in. After birdies at the fourth, fifth and eighth, she had bogeys at the 11th and 13th, a double bogey 5 at the short 16th and a bogey at the last.
There were two Italians in the top seven finishers, Alessia Cristin Avanzo finishing on 298. The last Italian to win this championship was Anna Rossi in 2006. This was Italian players' best performance in the tournament since then.
2016 Ladies’ British Open Amateur Stroke Play Champion, Winner of the Nicholls Trophy and Silver Medal, Sophie Lamb (Clitheroe) 291 (-1)
Runner-Up and Winner of the Holden Trophy, Cloe Williams (Wrexham) 293 (+1)
3rd Place - Georgia Price (Bude and North Cornwall) 294 (+2) better last round
4th Place - Alessia Nobilio (Italy) 294 (+2)
Winner of the Dinwiddy Trophy, for the lowest 72 hole score returned by an Under 18 year old - Alessia Nobilio (Italy) 294 (+2)
Winner of The Duncan Salver, for the lowest 72 hole score returned by an Under 23 year old - Sophie Lamb (Clitheroe) 291 (-1)
Winner of the Angela Uzielli Trophy, for the lowest 72 hole score returned by an over 23 year old - Nastia Banovecs (Slovenia) 305 (+13)
Winner of the Taunton Trophy, for the lowest 18 hole round score during the Championship - Chloe Frankish (Charthills) 68 (-5) bih in Rnd 3
Winners of the Team Event - Italy (293), represented by Alessia Nobilio, Caterina Don and Clara Manzalini
It looks a two-horse race over the final 18 holes for the Ladies' British open amateur stroke-play championship at Knock Golf Club, Belfast this afternoon.
Fourteen-year-old Italian Alessia Nobilio has shot another sub-par round of 71 to be four-under-par 215, two strokes ahead 19-year-old Clitheroe, Lancashire player Sophie Lamb who had a third-round 72, one under the par of 73.
Alessia and Sophie have gone clear of the field - there is a five-stroke gap between Lamb and the three players sharing third place on 222: Gemma Batty (Moffat), Annabel Wilson (Lurgan) and Alessia Cristin Avanzo (Italy). Nobilio, a member of the Ambrosiano Golf Club near Milan, was beaten semi-finalist in the recent Girls' British championship at Harlech, won by her compatriot Emilie Alba Paltrinieri.
Since then Alessia has won the Belgian international girls' stroke-play championship. Now she is set to become the first Italian to win the Ladies British stroke-play title since Anna Rossi in 2006 at Prince's Golf Club, Kent.
This morning, Nobilio staged a very strong finish to maintain a clear lead. She birdied the 15th, short 16th and 18th come come home in 34 after matching the outward par of 37 with a birdie at the first and a bogey at the second. She did have one other bogey on her card, at the 10th.
Lamb started well with birdies at the third and fifth but dropped shots at the eighth and 11th before running up a double bogey 5 at the short 12th. Sophie, too, however responded to the pressure with birdies at the long 14th and 17th on the run-in.
Batty and Wilson both shot 74s for 222, while Avanzo had a 75 to join them on that mark.