sentences:  The colonists likely recognized the threat this represented, given the Spanish sack of Fort Caroline in 1565.However, the Spanish were still attempting to locate the colony in Chesapeake Bay as late as 1600, suggesting that they were unaware of its fate.Anthropologist Lee Miller proposed that Sir Francis Walsingham, Simon Fernandes, Edward Strafford, and others participated in a conspiracy to maroon the 1587 colonists at Roanoke.