Prince Wà Âadysà Âaw Leon Adam Feliks Sapieha (30 May 1853 â 29 April 1920) was a Polish prince (ksiÃ à ¼ÃÂ) and magnate, member of the Sapieha family (Kodeà Âski line), landowner, social activist, deputy to the Diet of Galicia and Reichsrat.
Wà Âadysà Âaw Leon was the oldest son of Prince Adam Stanisà Âaw Sapieha and his wife, Princess Jadwiga Klementyna Sanguszko. He had two sisters and four brothers, among them Cardinal Adam Sapeiha.
From 1864 to 1871, Leon attended gymnasium, then studied law in Berlin and later in Heidelberg, and graduated in Lviv in 1876. After graduating, he spent one year serving in army. In 1877, he took a position as a clerk but resigned from the job after his brother Leon Paweà  persuaded him to manage the family estate in Krasiczyn. In 1883, he was elected deputy to the Diet of Galicia where he was member of the "Center" Parliamentary group along with Prince Jerzy Konstanty Czartoryski. As a deputy, he was a member of the parliamentary commissions of budget, mining, lustration and taxes. He did not apply for re-election in 1889. In 1883, he became a member of the Economic Society of Galicia. In 1908, he was again elected to the Diet of Galicia. In 1910, he donated archives collected in Krasiczyn to Ossolineum. In 1915, he became a member of the life-saving committee for war-stricken people, established by his brother Prince Adam Stefan Sapieha. He also contributed to running the Agricultural Academy in Dublany. From 1907 he was a member of the House of Lords of Austria-Hungary.
On 30 July 1881, in Cracow, he married Countess Elà ¼bieta Konstancja Potulicka, daughter of Count Kazimierz Wojciech Potulicki and his wife, Countess Maria Zamoyska. Wà Âadysà Âaw Leon and Elà ¼bieta Konstancja had ten children:
Wà Âadysà Âaw Leon died on 29 April 1920 in Lviv and was buried in Krasiczyn. He is the great-great-grandfather of Queen Mathilde of the Belgians.