Guillaume IX, seigneur de Montpéller

-https://fmg.ac/Projects/MedLands/TOULOUSE%20NOBILITY.htm#GuillaumeI...

Guillaume [VIII] & his second wife had seven (illegitimate) children:

2. GUILLAUME [IX] de Montpellier (-after 24 Feb 1212). "Guillelmus…Montispessulani, filius quondam Mathildis ducisse" agreed the marriage of "filiam meam Mariam" and "Bernardo, comitis Convenarum" by charter dated Dec 1197, under which Marie also agreed to renounce her rights to Montpellier in favour of "Guillelmo Montispessulani patri meo, et tibi Guillelmo filio ejus et domine Agnetis, fratri meo"[894]. However, after a revolt of the citizens of Montpellier against young Guillaume [IX], Marie recovered her inheritance 15 Jun 1204[895]. In his testament dated 4 Nov 1202, his father bequeathed Montpellier to "Guillelmum filium meum primogenitum"[896]. Pedro II King of Aragon "filio Sanctiæ…Reginæ Aragonum" granted property "villam de Montepessulano et castrum et villam de Latis et castrum de Paollano…et castrum et villam de Omelacio" to "Guillelmo de Montepessulano…filius Agnetis feminæ" by charter dated 24 Feb 1212[897].

Betrothed (1191, terminated 1199) to TIBURGE de Murviel, daughter of RAYMOND ATON de Murviel & his wife --- (-after 1199). "Ademarus de Muro-Veteri" and "Guillelmo domino Montispessulani, filio quondam Mathildis Ducissæ" agreed the marriage between "neptem meam Titburgam filiam quondam majorem Raimundi Atonis, olim filii mei" and "Guillelmo" son of the latter, by charter dated 1191, providing as dowry the property which "Raimbaldus de Aurenga…pater eius Guillelmus de Omelacio" had held, and that Guillaume would marry "neptem meam minorem Sibyllam, filiam quondam ipsius Raimundi Atonis filii mei" in case Tiburge died before the marriage was performed[898]. "Titburga filia quondam Raimundi Atonis" renounced the marriage contract with "Guillelmus dominus Montispessulani…filium…primogenitum", signed by "Adinaro de Muro-veteri avo meo", by charter dated 1199[899].