Descended from the Malones of Baronston, county Westmeath, members of this family were prominent in the legal circles of 18th century Ireland. The Honourable Anthony Malone M.P. was Prime Serjeant and Chancellor of the Exchequer 1757-1760 and uncle of Baron Sunderlin. Estates:

Mandeville

Estates:

Mandeville

Mangin

Estates:

Mangin

Mannix

Estates:

Mannix

Mansergh (Grenane)

Estates:

Mansfield

Estates:

Mansfield (Rathgormuck)

Estates:

Mapother

A family established in county Roscommon from the late 16th century. Estates:

Mapother

Maquay

Estates:

Maquay

Marmion (West Carbery)

Estates:

Marmion

Marnell

Estates:

Marnell

Marrett (Limerick)

Estates:

Marrett (Limerick)

Marsh

Estates:

Marsh

Marsh (Galway)

Estates:

Marsh (Galway)

Marshall (Baronne Court)

Estates:

Marshall (Baronne Court)

Marshall (County Kerry)

Estates:

Marshall (Toomaline)

Estates:

Marshall (Toomaline)

Martin

The Martin family established themselves as property owners in Sligo in 17th century Estates:

Martin (Ballynahinch)

Estates:

Martin (Ballynakill)

Estates:

Martin (Ballynakill)

Martin (Brook Lodge)

Estates:

Martin (Brook Lodge)

Martin (Bushy Park)

A junior branch of the Martins of Ballynahinch. Estates:

Martin (Bushy Park)

Martin (Clifford)

Estates:

Martin (Cloonygormican)

Estates:

Martin (Killoskehane)

Estates:

Martin (Ross)

Estates:

Martin (Toomore)

Estates:

Martin (Toomore)

Martin (Tullagreen)

Estates:

Martin (Tullagreen)

Martyn (Curraghmore)

Martin J. Blake writes that the Martyns of Curraghmore were descended from Geoffrey Martin, Mayor of Galway in 1631, whose eldest son John was transplanted from Galway to 500 acres in the barony of Ballynahinch, county Galway by the Cromwellian Commissioners. G.V.Martyn, a member of this family, wrote a number of articles in the ''Journal of the Galway Archaeological and Historical Society'' in the early years of the 20th century. Estates:

Martyn (Curraghmore)

Martyn (Gregans Castle)

Estates:

Martyn (Gregans Castle)

Martyn (Tullira)

Estates:

Martyn (Tulira)

Mason (Cooleen & Cappanihane)

Estates:

Mason (Derrylahan)

Estates:

Mason (Derrylahan)

Mason (Kerry)

Estates:

Mason (Kerry)

Mason (Masonbrook)

Estates:

Mason (Waterford)

Estates:

Mason (Waterford)

Massey (Elm Park) (Baron Clarina)

Estates:

Massey (Elm Park)

Massy (Baron of Duntrileague)

Estates:

Massy (Ballynort)

Estates:

Massy (Ballywire)

Estates:

Massy (Ballywire)

Massy (Cahervillahowe)

Estates:

Massy (Doonass) (Baronet)

Estates:

Massy (Glenville)

Estates:

Massy (Glenwilliam)

Estates:

Massy (Grantstown)

Estates:

Massy (Griston)

Estates:

Massy (Griston)

Massy (Kingswell)

Estates:

Massy (Mitchelstown)

Estates:

Massy (Mitchelstown)

Massy (Mount Massy)

Estates:

Massy (Riversdale & Ballinacurra)

Estates:

Massy (Stoneville)

Estates:

Massy (Stoneville)

Massy (Suir Castle)

Estates:

Masters

Estates:

Masters

Mather

Estates:

Mathew (Thomastown Castle) (Earl of Llandaff)

Estates:

Mathews

Estates:

Mathews

Maude (Viscount Hawarden, Earl de Monalt)

Estates:

Maunsell (Ballinamona, Caherdavin & Spa Hill)

Estates:

Maunsell (Ballybrood)

Estates:

Maunsell (Ballybrood)

Maunsell (Ballywilliam)

Estates:

Maunsell (Limerick)

Estates:

Maunsell (Oakly Park & Blackwater)

Estates:

Maunsell (Rathcannon)

Estates:

Max

Estates:

Maxwell (Earl of Farnham)

Estates:

Maxwell

Maxwell (Dysert)

Estates:

Maxwell (Glenalbert)

Estates:

Maxwell (Glenalbert)

Maxwell (Islandmore)

Estates:

Maxwell (Charleville & Islandmore)

Maxwell (St. Cleran's)

Estates:

Maxwell/Perceval Maxwell

Estates:

May (County Waterford)

Estates:

May (County Waterford)

Mayberry

Estates:

Mayberry/Maybury

Estates:

Estates:

Estates:

Estates:

McAlpine (Sligo)

McBride

Estates:

McBride

McCall

Estates:

McCall

McCallum

Estates:

McCan

Estates:

McCan

McCarrick

Estates:

McCarrick/McCarrig

McCarthy

Estates:

McCarthy

McCarthy (Cork)

Estates:

McCarthy (Drishane)

Estates:

McCarthy (Glanarought)

Estates:

McCarthy (Glanarough & Iveragh)

McCarthy (Headfort)

Estates:

McCarthy (Kilmacabea)

Estates:

McCarthy (Kilmacabea)

McCarthy (McCartie) Killaha

Estates:

McCarthy (Skibbereen)

Estates:

McCarthy (Skibbereen)

McCarthy (Springhouse)

Estates:

McCarthy (Springhouse)

McCarthy-Morrogh

Estates:

McCarthy-Morrogh

McCarthy-O'Leary

Estates:

McCartie

Estates:

McCartie (Carrignavar)

Estates:

McCartie (Carrignavar)

McCausland

A family from county Donegal who served as members of Parliament and in the legal profession. In 1793 Catherine McCausland married William Plunket 1st Baron Plunket. Her nephew Sir Richard Bolton McCausland inherited the Drimbawn, county Mayo property of his first cousin Catherine Plunket. Estates:

McCausland (Limavady)

Estates:

McCausland (Limavady)

McCormack

Estates:

McCormack (Tuam)

Estates:

McCoy

Estates:

McCoy

McCreery

Estates:

McCutcheon

Estates:

McCutcheon

McDaniel (Bandon)

Estates:

McDaniel (Bandon)

McDermott (Castlerea)

Estates:

McDermott (Cloongee)

Estates:

McDermott (Coolavin)

Estates:

McDermott (Lissycoyne)

Estates:

McDermott

McDermott (Ramore)

Estates:

McDermott (Springfield)

Estates:

McDermott (Streamstown)

Estates:

McDermott (Streamstown)

McDonagh

Carrowkeel Estates:

MacDonagh

McDonagh (Kilconnell)

Estates:

McDonagh (Lickmolassy)

Estates:

McDonnell (Achill)

Estates:

McDonnell (Aghalahard)

Estates:

McDonnell (Aghalahard)

McDonnell (Breandrum)

Estates:

McDonnell (Carnacon)

Estates:

McDonnell (Cloonagh)

Estates:

McDonnell (Cloonagh)

McDonnell (Doocastle)

Estates:

McDonnell (Doocastle)

McDonnell (Dunmore)

Estates:

McDonnell (Lackan)

Estates:

McDonnell (Lackan)

McDonnell (Palmfield)

Estates:

McDonnell (Palmfield)

McDonnell (Roscommon)

Martin McDonnell and Farrell McDonnell may have been related. They both acquired estates in counties Galway and Roscommon in the latter part of the 19th century. Estates:

McDougall

Estates:

McEvoy

Estates:

McEvoy

McFadden

Estates:

McFadden

McGillycuddy (The McGillycuddy of the Reeks)

Estates:

McGillycuddy

McGloin

Estates:

McGrath (Kilbarron)

Estates:

McGrath (Kilbarron)

McGrath (Toonagh)

Estates:

McGuire (Clonea)

Estates:

McGuire/McGwire (Clonea)

McGusty

Estates:

McGusty

McHale

Most Reverend John McHale, Archbishop of Tuam Estates:

McHale

McHugh

Estates:

McHugh

McIvor

Estates:

McKay

Estates:

McKenna

Estates:

McKenna

McLoghry

Estates:

McLoughlin (Castlecoote)

Estates:

McLoughlin (Newfield)

Estates:

McMahon (Clenagh)

Estates:

McMahon (Cloonmore)

Estates:

McMahon (Cloonmore)

McMahon (Kilfenora) (Baronet)

Estates:

McMahon (Kilfenora)

McMahon (Knockane)

Estates:

McManus (Barleyhill)

Estates:

McManus (Killedan)

Estates:

Taaffe (Killedan)

MCManus (Sligo)

Estates:

McManus (Sligo)

McMunn

Estates:

McMunn

McMurray

Estates:

McNamara

George McNamara was a son of Florence McNamara of Dromyn, county Clare. He was reputed to be a highwayman and became a popular figure in local folklore. Estates:

McNamara

McNamara (Leitrim)

Estates:

McNamara Morgan

Estates:

McNevin

Estates:

McSweeney

Estates:

McSweeney

McSweeney

Estates:

McSweeney/MacSwiney (Cork)

McTernan

Mount Allen, Co. Leitrim and Heapstown, Co. Sligo Estates:

Mead

Estates:

Mead

Meade (Earl of Clanwilliam)

Estates:

Meade (Cork)

Estates:

Mecham

Estates:

Mecham

Medlen

Estates:

Medlen

Medlycott

Estates:

Meldon

A Dublin lawyer with a large estate in county Galway. Estates:

Mennons

Estates:

Meredith

Estates:

Meredith (Dysert)

Estates:

Meredith (Whitechurch)

Estates:

Merrifield

Estates:

Merrifield

Metcalfe

Estates:

French (Frenchlawn & Frenchbrook)

Middleton

Estates:

Middleton (Dangansallagh)

Middleton (Sligo)

Estates:

Middleton (Sligo)

Miles

Estates:

Miller (Ballycaseymore)

Estates:

Miller (Fearmore)

Estates:

Miller (Leitrim)

Estates:

Miller

Miller (Milford)

Estates:

Millett

Estates:

Millner

Estates:

Millner

Mills

Estates:

Minchin

Estates:

Minhear

Estates:

Minnitt (Annaghbeg, Co Tipperary)

Estates:

Minnitt (Annaghbeg, Co Tipperary)

Mitchell

Estates:

Mitchell (Castle Strange)

Estates:

Mitchell (Mitchellsfort)

Estates:

Mitchell (Mitchellsfort)

Mitchell (Toormakeady Lodge)

A family of industrialists from Bradford in Yorkshire. Estates:

Molloy

Estates:

Moloney (Kinalea)

Estates:

Molony

Estates:

Molony (Cragg)

Estates:

Molony (Granaghan)

Estates:

Molony (Kiltanon)

Estates:

Molony (Thurles)

Estates:

Molony (Thurles)

Molyneux (Co Limerick) (Baronet)

Estates:

Molyneux (Co Roscommon)

Estates:

Monahan/Monaghan

Estates:

Monahan/Monaghan

Monck

Estates:

Monck

Monckton

Estates:

Monckton

Monds

Estates:

Monds

Monsell (Co Tipperary)

Estates:

Monsell (Co Tipperary)

Monsell (Limerick) (Baron Emly)

Estates:

Montagu (Earl of Sandwich)

Estates:

Montgomery

Estates:

Montgomery

Montgomery (Grey Abbey)

Estates:

Montgomery (Killee)

Estates:

Moore (Earl of Mountcashell)

Estates:

Moore (Achill)

Estates:

Moore (Achill)

Moore (Barne)

Estates:

Moore (Boyle)

Estates:

Moore (Boyle)

Moore (Brees)

According to Martin J. Blake this family of Moore were descended from the Mores of Barmeath, county Louth. Estates:

Moore (Clonfert)

Estates:

Moore (Clonfert)

Moore (Cloongee)

Estates:

Moore (Drum)

A family transplanted to the parish of Drum, county Roscommon, from county Meath under the Cromwellian settlement. Estates:

Moore (Moorbrook)

Estates:

Moore (Moore Hall)

John Moore elected President of the Republic of Connaught in 1798, George Henry Moore supporter of tenant right and the author, George Augustus Moore, were all members of the family of Moore of Moorehall. Estates:

Moore (Moorehill)