Castle Name	Condition	Description	Early Founder(s) -- Time Period(s) Contructed	Parish/Townland	Ord	Residency	Links
Ardee Castle (St. Leger's Castle)	Full*	tower house 13th century, now a courthouse.	de Peppard (1207), Taffe -- 15th century	Ardee	N962907		http://www.from-ireland.net/lewis/l/ardee.htm http://cloghmore.bravepages.com/louth/ardee_castle.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/a/ardee.htm
Balley Castle							http://www.from-ireland.net/lewis/l/carlingford.htm
Ballug Castle	Ruin						http://www.from-ireland.net/lewis/l/carlingford.htm http://cloghmore.bravepages.com/louth/ballug.html
Ballymascanlon Castle	None						http://www.from-ireland.net/lewis/l/ballymascanlon.htm http://www.countylouth.com/louth_carlingford.htm
Balrichen castle (Balbriggan Castle)	Ruins						http://www.from-ireland.net/lewis/l/castletown.htm
Belrobin Castle	None						http://www.from-ireland.net/lewis/l/baronstown.htm
Byrne’s Folly (Dun Dealgan Motte)	Ruin				J029083		http://cloghmore.bravepages.com/louth/dundealgan.html
Castle Bellingham	Full*					Hotal	http://www.from-ireland.net/lewis/l/castlebellingh.htm http://www.bellinghamcastle.com/
Castletown Castle	Full*				J032087		http://www.from-ireland.net/lewis/l/castletown.htm http://cloghmore.bravepages.com/louth/castletown.html
Clonkeen Castle	Ruins						http://www.from-ireland.net/lewis/l/clonkeen.htm
Clonmore Castle	Ruins						http://www.from-ireland.net/lewis/l/clonmore.htm
Darver Castle	Full*		Babe				http://www.darvercastle.com/
Drogheda Castles		Mill Mount is an Anglo-Norman motte built on a prehistoric mound. On the opposite side of the River Boyne is the 13th century St Lawrence's Gate, which may be the remains of the barbican of another castle.	de Lacy (c1180s) -- north of river from St. Laurence's Gate		N 0976		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/d/drogheda.htm
Dromiskin Castle (Dromisken Castle)
Dunmahon Castle	Partial*	A 15th century towerhouse.			J036021		http://cloghmore.bravepages.com/louth/dunmahon.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/d/dunmahon.htm
Glaspistole Castle (Clogher Castle, Kilclogher Castle)	Ruins						http://www.from-ireland.net/lewis/l/clogher.htm
Hatch's Castle	Full*	tower house.			N962905		http://www.from-ireland.net/lewis/l/ardee.htm http://cloghmore.bravepages.com/louth/ardee_hatch.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/a/ardee.htm
Heynestown Castle
King John's Castle	Ruin	A "D" shaped stone enclosure castle of the late 12th century with a 13th century hall block.	de Lacy (c1200) -- 15th century	Carlingford	J188120		http://cloghmore.bravepages.com/louth/carlingford_john.html http://www.fjiordlands.org/carlnfrd/kingjs.htm http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/c/carlingford.htm
Knock Abbey Castle	Full*						http://www.knockabbeycastle.com/
Milltown castle (Louth Castle, Fairy Mount)	Partial*	A 12th century motte	16th century tower (S of Heynestown)		O034993		http://cloghmore.bravepages.com/louth/milltown.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/m/milltown.htm
Monasterboise Round Tower		Round Tower			O043827		http://roundtowers.org/monasterboise/index.htm
Mount Ash		An Anglo-Norman motte castle with remains of stonework.			H 9514		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/m/mnt_ash.htm
Roche Castle (Castleroche, Castlellum de Rupe, de la Roche)	Ruin	A 13th century stone enclosure castle containing the remains of an earlier great tower.	de Verdun (1236-74) - triangular castle		H991119		http://cloghmore.bravepages.com/louth/roche.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/c/castleroche.htm
Roodstown Castle	Partial*	A 15th century four-storeyed rectangular towerhouse.		Ardee	N996925		http://cloghmore.bravepages.com/louth/roodstown.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/r/roodstown.htm
Slane Castle	Full*					Event Center	http://www.tourismresources.ie/cht/slane.htm
Smarmore Castle	Full*		(c1320) -- towerhouse			Hotel	http://www.smarmorecastle.com/
St Laurence's Gate			(c1250)	Drogheda	O092753		http://cloghmore.bravepages.com/louth/drogheda_laurence.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/d/drogheda.htm
Taaffe's Castle	Partial*	16th century towerhouse.			J189117		http://www.fjiordlands.org/carlnfrd/taaffes.htm http://cloghmore.bravepages.com/louth/carlingford_taaffe.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/c/carlingford.htm
Termonfeckin Castle	Partial*	A 15th/16th century towerhouse.	15th/16th century tower-house	Termonfeckin	O143803		http://cloghmore.bravepages.com/louth/termonfeckin.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/t/termonfeckin.htm
The Mint	Full*	16th century towerhouse.			J189116		http://cloghmore.bravepages.com/louth/carlingford_mint.html http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/c/carlingford.htm

31 -- Entries Listed