瓦勒斯卡 is a phonetic transliteration of Waleska / Valeska — historically a Polish feminine form of Wladyslaw / Valery, also borne by Brazilian and German bearers. The Walesa surname (e.g. Lech Wałęsa, the Solidarity leader) is normally rendered
瓦文萨 in Chinese, so this is a separate name.