St Mary's Knockbeg College is a Roman Catholic, all-boys secondary school located on the Laois/Carlow border in Ireland, approximately 3 km from both Carlow town and Graiguecullen, County Laois. A former seminary school for the diocese of Kildare and Leighlin, it was founded in 1793. Exclusively a boarding school until the 1980s, it now accommodates only day-pupils; the boarding school having closed down in June 2011. Knockbeg College celebrated its bicentenary in 1993.

Myles Walter Keogh was an Irish soldier. He served in the armies of the Papal States during the war for Italian unification in 1860, and was recruited into the Union Army during the American Civil War, serving as a cavalry officer, particularly under Brig. Gen. John Buford during the Gettysburg Campaign and the three-day Battle of Gettysburg. After the war, Keogh remained in the regular United States Army as commander of I Troop of the 7th Cavalry Regiment under George Armstrong Custer during the Indian Wars, until he was killed along with Custer and all five of the companies directly under Custer's command at the Battle of the Little Bighorn in 1876.