Giangaleazzo Visconti, Baldus' secular lord and patron during the last ten years of his life.

Giangaleazzo claimed a ducal title for himself and argued that all cities and lordships formerly subject to the Visconti vicariate were now subject to him as their feudal lord.

Baldus' Consilia for Giangaleazzo

1. Rex Romanorum [1st Version] Barb. 1410, fol. 320r-325 (Venice 1.453)

2. Rex Romanorum [2nd Version] Barb. 1408, fol. 174v-179v (Venice 3.279-279 (sic); Milan 1.326-327)

3. Additio to Rex Romanorum Barb. 1408, fol. 214v-215r

4. Queritur si rex Romanorum Barb. 1408, fol. 180r-183r (Venice 3.280; Milan 1.328)

5. Ad intelligentiam sequendorum premittendum quoddam indubitatum, uidelicet quod princeps Romanus potest sua castra et iurisdictiones et dignitates in feudum assignare Barb. 1408, fol. 188r-189v (Venice 3.285; Milan 1.333)