
1) Arthurian character 2) Arthurian legend boy name 3) Knight of the Round Table 4) Medieval Welsh saint
Found on
https://www.crosswordclues.com/clue/hoel

Hoel or Howel (Hywel) is a legendary king of Brittany and one of the oldest characters associated with Arthurian legend. He is the son of King Budic (or Boudicius) of Brittany, and serves as one of King Arthur`s vassals and loyal allies. In Welsh literature, where he appears as Hywel fab Emyr Llydaw, his father is named Emyr Llydaw (`Emyr of Bri.....
Found on
http://en.wikipedia.org/wiki/Hoel

The USS Hoel was an American Fletcher Class destroyer of 2050 tons displacement built under the 1940-41 programme and sunk during the Second World War. The USS Hoel was powered by four Babcock and Wilcox boilers providing a top speed of 36 knots. She carried a complement of 353 and was armed with five 5 inch guns; six 40 mm Bofors anti-aircraft gun...
Found on
http://www.probertencyclopaedia.com/browse/RH.HTM
No exact match found.