Kathrine the Witch
From DQWiki
Kathrine the Witch.
On the map is a river heading inland. It enters a forest and a grey area notes the location of her swamp. Kathrine lives in her cave in the swamp within Swithan's Roughlands and north of Amber Village which is in turn north of Fastness of Girwyllan. She is friendly to Seagate Guild of Adventurers.
She is a good witch, wise in the ways of the world. Also known as a Leech Witch because of her ablilitie to breed Leechs.