Mad(e)lin with a slight schwa in the middle. yoo-NEE-see KIEa KAYa
Eunice could be YOO-ne-see I suppose. But yoo-NEES doesn't work for me - sounds as if you're rudely calling your nephew's sister. The yoo-NEE-see version is the name of a well-known girls' high school in South Africa with a good academic and sporting record;it's clearly been pronounced that way for a good many years.
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