The wedding ceremony took place on 1 September 1246, probably at Vohburg in Bavaria, against fierce protests by the papal legate Albert von Behaim.

In 1256 Elisabeth had to witness the execution of Louis' wife Maria of Brabant, whereafter she gave Conradin to the Bishop of Constance for care and education.

Her second husband, just released from custody by Archbishop Philip of Salzburg, was of inferior status and about ten years younger than her, nevertheless his Tyrolean domains comprised the strategically important mountain passes across the Alps to Italy.

When Charles of Anjou defeated Manfred of Sicily in the 1266 Battle of Benevento, her brother Louis and her husband Meinhard encouraged Conradin's decision to go on campaign.

In August 1267, mother and son met for a last time at Hohenschwangau Castle before Conradin left for Italy, together with his uncle and his stepfather, who however deserted him in Verona.