in
Guernsey during refortification for artillery Peter Meutas led a band of "
hagbutters" at the
Burning of Edinburgh in May 1544, the first major action of the war now known as the
Rough Wooing. The English army landed near
Granton and marched towards
Leith. Their route involved crossing the
Water of Leith near
Inverleith, where a large Scottish force put up an opposition. There were as many as 500 hagbutters in total, divided into a vanguard, battle, and rearward, and Meutas's men and others captured the Scottish artillery. One of the Scottish leaders,
Cardinal Beaton stayed on the field until he was in range of the handguns. English observers reported he was wearing a frock of yellow velvet, cut and pulled out with white tinselled sarcenet. The English commander,
Lord Hertford described this battle as a half-hour fight, "right sharply handled on both parts", with Peter Meutas's hagbutters giving "right honest service". Hertford knighted Meutas on Sunday 18 May 1544 at "Butterdean", near
Coldingham. Meutas was to be sent to France in June 1544 with 500 arquebusiers, and he requested that two petty-captains Walter Urbes and Robert Crache, who had been with him in Edinburgh, should serve with him again. However, in August, Meutas sailed from Bristol in an attempt to install
Matthew Stewart, 4th Earl of Lennox in
Dumbarton Castle.
Catherine Parr, acting as Regent of England, sent notice of their orders to Henry VIII. They captured the islands of
Arran and
Bute with
Rothesay Castle, but were unsuccessful at
Dunbarton. Meutas and Thomas Bishop brought news of this setback to Catherine Parr and the council at
Woking Palace on 19 September and were directed to Henry VIII at
Boulogne. Henry sent Meutas back to Woking with orders to recall the army from Scotland to join him in France. On 26 March 1545 Meutas was appointed Governor of
Guernsey and
Castle Cornet. He held this position until 1553. Meutas organised the building of some fortifications, employing the military engineer John Rogers, and a tower at Castle Cornet was known as the "Mewtis Bulwark". A cannon, described as a brass
saker, carries an inscription that Thomas Owen made the piece for Guernsey when Meutas was governor. In February 1547 he was sent to France to give notification of the death of Henry VIII. In September 1547, Meutas was in Scotland again, involved in the short sieges of
Thornton Castle and
Innerwick Castle before the
battle of Pinkie. Thornton was held by Tom Trotter for
George Home, 4th Lord Home. Four English cannons bombarded Thornton while foot soldiers with hand guns directed by
Peter Meutas prevented the defenders shooting from the gunloops. Thornton's garrison surrendered to
Miles Partridge and the castle was demolished with gunpowder. At Innerwick, Meutas's troops fought their way into a basement and set the castle on fire. His foot soldiers armed with "hacquebuttes" fought at Pinkie. ==Mary I==