"The Ragland name first surfaced in the 12th century when Walter Bloet was granted Rhaglan or Raghelan (1254) -- meaning probably in Welsh rhag 'fore' and glan 'bank', hence 'rampart', or, in another interpretation meaning 'border' -- a place in the lordship of Usk in southern Wales. His descendant, Elizabeth Bloet, married Sir James Berkeley who became lord of Raglan in 1399. Shortly after his death, Elizabeth "the lady of Raggeland" took as her second husband William ap Thomas Herbert, "a member of a minor Welsh gentry family."

"In 1418, William ap Thomas was knighted by King Henry V and in 1432, he acquired Raglan Castle (Castell Rhaglan in Welsh) from his stepson James, Lord Berkeley, for 1000 marks (almost £667). Sir William ap Thomas fought with King Henry V in France, becoming known as Y marchog glas o Went, the Blue Knight of Gwent. In the 1430s, he enlarged and modernized the castle which became a huge fortress. In 1418, Sir William's nephew, a ten-year old boy, Robert ap Jevan whose father had died early, and two more of his siblings, came to live at Raglan Castle. Robert was the first family member to take the Raglan/Ragland name (both versions used indiscriminately)."

I have a Johnson Brothers coffee mug- it's parts of a set of four and each one has a different English castle on it. One of them is the Raglan castle. On the mug the caption under the photo says, "Ragland Castle in 1792". But the correct spelling of the Castle is "Raglan". When I look up "Ragland Castle" online, it says, "did you mean Raglan Castle?"

So, why did they add a "D" to the end of it?