Joseph Lalor and his brother, James, were born in the 1760s in Clonaheen, Queens, Ireland.They entered the military (where they reassumed the family surname of O'Lawlor) and fought in Spain's war against Napoleon.James died early in the war (1808 in Valencia) but Joseph became a personal aide to the Duke of Wellington and later held military and governmental posts in Spain, where he married and lived the remainder of his life.His children married into the nobility of Spain, and he has many illustrious descendants there.
The military archives of Spain preserved James' birth certificate, on which is found the treasure of five generations back on his father's side and four on his mother's (Brennan) side.
Here is the Lalor side of that genealogy:
Joseph and James, sons of Peter Lalor (and Mary or Elizabeth Brennan), son of Joseph Lalor (and Joan Vicar), son of William Lalor (and Sara Dooley), son of Francis Lalor (and Mary Delany), son of Patrick Lalor and Margaret O’Carroll.
No dates or places are given other than the birth date and place for James.
I have conjectured that the Tenakill Lalors are also of this line, Patrick (born c. 1731) possibly being another son of Joseph Lalor and Joan Vicar.