Leap Castle is a castle in Coolderry, County Offaly, Ireland, about 6 kilometres (3.7 mi) north of the town of Roscrea and 10 kilometres (6.2 mi) south of Kinnitty on the R421.

John Nelson Darby was an Anglo-Irish Bible teacher, one of the influential figures among the original Plymouth Brethren and the founder of the Exclusive Brethren. He is considered to be the father of modern dispensationalism and futurism. Pre-tribulation rapture theology was popularized extensively in the 1830s by John Nelson Darby and the Plymouth Brethren, and further popularized in the United States in the early 20th century by the wide circulation of the Scofield Reference Bible.