This street lies mostly in Columbia City, where its name originated, and Seward Park, with a few blocks in Beacon Hill and even fewer in West Seattle. It almost reaches Puget Sound at Beach Drive SW, and does reach Andrews Bay of Lake Washington at Lake Washington Boulevard S.
As noted, the name Angeline Street originated in Columbia City, in this 1891 Plat of Columbia, filed at the request of James Kippen Edmiston by Percy W. Rochester and John I. Wiley of the Washington Co-operative Home Company.
Princess Angeline was born Kikisoblu, the daughter of Si’ahl [siʔaɫ], better known in English as Chief Seattle of the Duwamish and Suquamish Tribes. Her date of birth is unknown; Wikipedia gives it as ca. 1820, whereas this article posted by the Duwamish Tribe, written by elementary school students based on HistoryLink essays, gives it as 1828. She died May 31, 1896.
Princess Angeline received her English name from Catherine Broshears Maynard, wife of David Swinson (“Doc”) Maynard, one of the earliest Seattle settlers. As the HistoryLink Elementary article puts it,
Chief Seattle’s oldest daughter was named Kikisoblu. She became friends with many of Seattle’s founding families. One of her friends was Catherine Maynard. She felt that Kikisoblu should have a name that would let the white settlers know that she was the daughter of a great chief. So she called her Princess Angeline. She thought that name was prettier than the name Kikisoblu.