[2] John Munro, 2nd of Lemlair entered into a military career and rose to the rank of colonel, taking a prominent part in the wars involving James Graham, 1st Marquess of Montrose from 1639 to 1649.
[3][note 1] In 1617 John Munro was amongst those chosen to help settle a dispute between the same Earl of Sutherland and Donald Mackay, 1st Lord Reay over the boundaries of their estates.
[4] Soon afterwards John Munro of Lemlair, following the example of James Graham, 1st Marquess of Montrose severed his connection with the Covenanters and joined the Royalists.
[7] In order to deceive this body one troop of horse was ordered out and these being the only Covenanter forces observed, the enemy reported back to Montrose thus throwing him completely off his guard into thinking that the strength of his opponents consisted of a single troop of horse and he therefore made no special arrangements to defend himself.
[7][8] Colonel John Munro married Janet, second daughter of George Gray of Skibo Castle and had the following children:[9]