Original sentence: After the disastrous Nine Years war the leaders of the O'Donnell clan left Ireland in the Flight of the Earls.At the same time, he and his wife Nuala, built a Franciscan Abbey further down the river.Donegal, or in Irish, Dún na nGall, translates as Fort of the Foreigner possibly coming from a Viking fortress in the area destroyed in 1159.For most of the last two centuries, the majority of the buildings were in ruins but the castle was almost fully restored in the late 1990s.However, due to hundreds of years of development, no archaeological evidence of this early fortress exists.Most of the stone work was constructed from locally sourced limestone with some sandstone.The castle is now open to the public and often hosts events like Gaelic cultural evenings.The complex is sited on a bend in the  Eske River, near the mouth of Donegal bay, and is surrounded by a 17th boundary wall.The stone work has been restored and the manor wing has been partially roofed
Edited sentence: At the same time, he and his wife Nuala, built a Franciscan abbey further down the river.Donegal (Irish, Dún na nGall), translates as Fort of the Foreigner possibly coming from a Viking fortress in the area destroyed in 1159.Donegal Castle on the Heritage Ireland website.For most of the last two centuries, the majority of the buildings lay in ruins but the castle was almost fully restored in the late 1990s.However, due to hundreds of years of development, no archaeological evidence of this early fortress has been found.In 1607, after the Nine Years war the leaders of the O'Donnell clan left Ireland in the Flight of the Earls.Most of the stonework was constructed from locally sourced limestone with some sandstone.The castle is now open to the public and often hosts events such as Gaelic cultural evenings.The complex is sited on a bend in the River Eske, near the mouth of Donegal Bay, and is surrounded by a 17th century boundary wall.The stonework has been restored and the manor wing has been partially roofed