 It is believed that the site's earliest Christian activity began sometime in the 6th century AD.Archaeological excavations in the 1990s uncovered two early Christian burials beneath the foundations of a later church; these burials were radiocarbon-dated between the 5th and 6th centuries AD (AD 435-601 and AD 474 -601).Despite this early activity, it wasn't until the 9th and 10th centuries that Govan Old rose to prominence.