The Lacy family originated in Normandy and immigrated to England about 1066 A.D. Some descendants immigrated later to Ulster, Ireland, or to Australia. Relatives also scattered (probably originally from Normandy) through France, Austria, Russia and elsewhere.

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This is the master volume to the 28 book set on Irish Family History from the Irish Genealogical Foundation. The largest and most comprehensive of the series, this volume includes family histories from every county in Ireland and Northern Ireland. It also has, for the first time, the complete surname index for the entire series. The 27 other books which are indexed in this volume will provide additional information on even more families.

Lacy family

Walter de Lasci is one of the earliest known progenitors of the De Lacy family. He accompanied William the Conquerer to England. One of his descendants, Gilbert de Lacy, helped with the Norman invasion of Ireland. The De Lacy family was a powerful family in Anglo-Irish politics. One of the numerous De Lacy descendants, James Lacy (b. 1828) immigrated to America in 1847. His descendants live in the United States. There are descendants of the original De Lasci who live throughout the world.