Maybe a type of Crinum? If this of the genus, I can’t tell which species yours is. Check out this included link for more information. Best wishes! http://hihort.blogspot.com/2011/09/queen-emma-lily-which-one-is-it.html

Walter, I think you’ve got it right. Thank you! It is wonderful you share your expertise. In that line, let me share a story I love. One day Ralph Waldo Emerson found himself trying to push a large calf into the barn with his son. The two of them pushed from the rear, pulled from the front, grabbed tail and ears alike. Progress was imperceptible. The best evidence that work was being done were their red faces and perspiration soaked shirts. The calf remained unmoved. Then, along came a servant girl. She grinned and stuck a finger in the calf!s mouth. The calf, seduced by this maternal proxy, followed her straight into the barn. Emerson smiled at his son and said, ÒI like people who know how to get things done!Ó Bill

hmmmmm.. maybe nerine? https://www.highcountrygardens.com/flower-bulbs/unique-spring-planted-bulbs/nerine-lily