| 100% | TRISTAN | 7 | Nephew of King Mark, in legend |
| 55% | BORS | 4 | Nephew of Lancelot and knight of the Round Table in Arthurian legend |
| 53% | KRONOS | 6 | King of the Titans, in Greek legend |
| 51% | ADRASTUS | 8 | King of Argos in Greek legend whose children included Deipyle and Aegialeus |
| 50% | GARETH | 6 | Nephew of King Arthur |
| 48% | GARETH | 6 | Sir ___, nephew of King Arthur |
| 47% | ISEULT | 6 | Wife of King Mark of Cornwall |
| 45% | GUINEVERE | 9 | In legend, King Arthur's wife |
| 44% | OMEARA | 6 | Mark in the World Golf Hall of Fame |
| 44% | CHARLIEHUNNAM | 13 | He played King Arthur in 2017's "King Arthur: Legend of the Sword": 2 wds. |
| 44% | LOHENGRIN | 9 | Son of Parsifal in Germanic legend |
| 44% | ALCESTIS | 8 | Daughter of Pelias in Greek legend |
| 43% | ERA | 3 | "___ of kings and castles..." (time period in history) |
| 43% | COMMA | 5 | Punctuation mark in a list of items |
| 43% | MAGI | 4 | Trio of kings in a nativity scene |
| 43% | GRENDEL | 7 | Bane of King Hrothgar, in literature |
| 43% | CUBAN | 5 | Mark of success in business? |
| 43% | WILLIAMOFPEACH | 14 | King of England in 1700 |
| 43% | TIMUR | 5 | King of Tartary in "Turandot" |
| 43% | ROBERT | 6 | King in "Game of Thrones" |
| 42% | TILDE | 5 | Mark in the intersection of 56-Across and 38-Down |
| 42% | CEDILLA | 7 | Mark in the intersection of 58-Across and 43-Down |
| 42% | UMLAUT | 6 | Mark in the intersection of 17-Across and 1-Down |
| 42% | CIRCUMFLEX | 10 | Mark in the intersection of 19-Across and 11-Down |
| 42% | IGRAINE | 7 | The mother of King Arthur, according to legend |
| 42% | ZENDA | 5 | Site of King Rudolf's imprisonment, in fiction |
| 42% | MALLOW | 6 | Candy Country marshal in Legends of Oz movie |
| 42% | ERIC | 4 | Name of kings in Denmark, Norway and Sweden |
| 42% | ATLI | 4 | Hun king, in Norse legend |
| 42% | BLACKBELT | 9 | Mark of expertise in martial arts |