William Tynbegh

William Tynbegh or de Thinbegh (c. 1370–1424) was an Irish lawyer who had a long and distinguished career as a judge, holding office as Chief Justice of all three of the courts of common law and as Lord High Treasurer of Ireland.

His career is unusual both for the exceptionally young age at which he became a judge, and because he left the Bench to become Attorney-General for Ireland, but later returned to judicial office.

[6] In 1409 he sat on a three-man commission to inquire into the export of foodstuffs from Ireland without a royal licence; he was then acting as Deputy Lord Treasurer.

[1] The Roll states that he was appointed Deputy Treasurer in the absence of Sir Laurence Merbury, who had gone to England on official business.

[1] The Roll gives a vivid account of the troubled state of Ireland under English rule in that year, and useful information on the members of the Royal Council.

[11] In 1421 he persuaded the Crown to pardon Ralph Drake of Athboy, who had been declared an outlaw, not because of any notorious crime, but as a fairly common legal device in civil proceedings against a debtor.

[9] He apparently experienced some difficulty in establishing control of Derpatrick, which was also claimed by his long-term opponent, the Earl of Ormonde, as in 1423 he was obliged to remind the Crown of the grant.

[16] He was still living in March 1424, when he ordered the Archbishop of Dublin to make a grant of the lands formerly owned by Thomas Leger to Richard Vale;[17] but he died later the same year.