The manager of Castletown House in Celbridge, Co Kildare, said the recent presence of Travellers in the grounds of the tourist attraction had "intimidated" visitors, although she did not think the number of visitors had dropped.
Ms Joanna Cramsie, the manager, said she had experienced no hostility from the Travellers who camped on the site in recent weeks, but said they had left behind kitchen sinks, abandoned cars and mattresses.
"They were causing litter, public health problems, they were trespassing, and there was a safety issue in the avenue, with kids on beach buggy-type things roaring around," she said.
Ms Cramsie said the Travellers left after a High Court injunction was granted on Thursday.
"They didn't have our permission to come here and we had to go through legal proceedings to get them out. That involved getting a High Court injunction. Once they heard it was on the way they all left."
A spokeswoman for Duchas, the Heritage Service, Ms Catherine Doherty, confirmed that an injunction had been served.
"It was for public safety and because it was interfering with tourism," she said.
No Traveller associations were available for comment yesterday.
A garda at Celbridge Garda station said there were more than 100 caravans in the area at one stage but that there had been no breach of the peace.
"Insofar as the gardai were concerned, there weren't a great deal of problems other than problems of litter and a number of calls we got from individuals who weren't happy with them around," he said.
