PORTSMOUTH, N.H. — Police in Portsmouth, N.H., say a man smashed a window to break into a warehouse on the property that once belonged to a signer of the Declaration of Independence.

The burglar alarm sounded around midnight Monday at the Moffatt-Ladd House. Police later arrested 23-year-old Thistleton Robertson IV one count of burglary.

Nothing at the house was damaged.

The Portsmouth Herald reports during his arraignment, Robertson said he was intoxicated and broke into the home because he was running away from two people. He said he works as an engineer for New York City’s Department of Environmental Protection and was visiting his girlfriend in Kittery, Maine.

The Moffatt-Ladd House, a Georgian mansion built in 1763, was the home of merchant William Whipple, one of the three New Hampshire signers of the Declaration.