Walter St. Lawrence
He was one of the younger sons of Christopher St Lawrence, 2nd Baron Howth and Anne Plunket. His eldest brother Robert St Lawrence, 3rd Baron Howth was born before 1435; if, as Elrington Ball, suggests Walter was the youngest of his parents' six sons this would suggest a birthdate around 1445.
His father had been a committed supporter of the House of York and had been rewarded for his loyal services to the dynasty by Edward IV, but Walter's eldest brother Robert married Joan Beaufort, a cousin of the future Henry VII, and after the accession of the Tudors the St Lawrence family were reliable supporters of the new dynasty. Walter's nephew Nicholas St Lawrence, 4th Baron Howth was one of the few among the Anglo-Irish nobility who did not support the claims of the pretender Lambert Simnel to be the rightful King of England, and after the defeat of Simnel's cause at the Battle of Stoke in 1487, the family's rewards included Walter's appointment as Attorney General in 1491.
At the second landing of Perkin Warbeck, another pretender to the Crown, in Ireland in 1495, Walter played an active part in the defence of Dublin. Again he received his reward: Ball suggests that his appointment as Chief Baron of the Exchequer the followings year was a personal choice by the King. He held that office until his death in 1504.
- Ball F. Elrington History of Dublin Vol.5 1917: Alexander Thom and Co. Dublin p. 52
- Ball 1917 p.52
- Specifically he claimed to be the Earl of Warwick, Edward IV's nephew, whom he closely resembled, but who was actually a prisoner in the Tower of London.
- Ball, F. Elrington The Judges in Ireland 1226-1926 Vol.1 1926:John Murray London p.190
- Ball 1926 p.190
- Ball 1926 p.110