The great feudatories did not even respect the lives of the royal family, for Andrew was recalled from a futile attempt to reconquer Galicia (which really lay beyond the Hungarian sphere of influence), through the murder of his first wife Gertrude of Meran (September 24, 1213), by rebellious nobles jealous of the influence of her relatives.
Thomas Campbell's poem, Gertrude of Wyoming (1809), is based on this episode, various liberties being taken with the facts.
The most vivid account of Hamilton is in Mrs Gertrude Atherton's historical romance, The Conqueror (New York, 1902), for the writing of which the author made new investigations into the biographical details, and elucidated some points previously obscure; see also her A Few of Hamilton's Letters (1903).
After a second war peace was sealed, apparently, by the marriage of Philip to Robert's step-daughter Bertha, daughter of Gertrude of Saxony and Florence, count of Holland.
Lothairs rebuff in Bohemia stiffened the backs of Frederick and Conrad, and in order to contend with them the king secured a powerful ally by marrying his daughter Gertrude to Henry the Proud, a grandson of Welf, whom Henry IV.