To keep them sorted:
Sir Alexander Stewart, 4th of Garlies was the son of Sir Alexander Stewart, 3rd of Garlies
He died on 9 September 1513 at Flodden Field, Northumberland, EnglandG, killed in action.2
He fought in the Battle of Flodden on 9 September 1513.2
See https://www.thepeerage.com/p29935.htm#i299347
"His father Sir Alexander Stewart, 3rd of Garlies died circa 1500.1"
See https://www.thepeerage.com/p2515.htm#i25145
"His son Sir Alexander Stewart, 5th of Garlies was born circa 1507.
He died in January 1580/81.1"
See https://www.thepeerage.com/p29935.htm#i299348