On the death of Sir Eubule Thelwall, Dr. Francis Mansell was again appointed to the Headship. Encouraged, perhaps, by the example of his predecessor, he, in his second tenure of the office, greatly enlarged the buildings of the College, “for though our Principall had no fonds but that of his owne Zeale, such was the Interest, which his Relation in Blood to the many noble Families and (which was more prevailing) his public and pious Spirit, had procured him, that he had Contributions sufficient in view to finish and perfect his new Quadrangle; S^{r} George Vaughan of Ffoulkston in Wiltshire having declared that himselfe would be at the whole charge of the west end, which was designed to be the Library; but all these pious designes and contributions were lost by the dispersions and Ruines that by the Warr befell those who intended to be our Benefactors.”[292] Notwithstanding, Dr. Mansell was able to effect much, for he pulled down Thelwall’s library, which does not seem to have been a satisfactory building, and erected the north and south sides of the inner quadrangle. He also enriched the College with revenues and benefices, some of which appear to have been since alienated. Dr. Mansell was obliged to leave Oxford in 1643, owing to “the sad newes of his Brother S^{r} Anthony’s decease, who fell with all the circumstances of signall Piety and Vallor in the first Newbury fight; where he commanded as field-Officer under Lord Herbert of Ragland.” He had to remain in Wales to settle his brother’s affairs, and look after his orphan children for some time; but “the Garrison of Oxon being surrendered in 1646, and the Visitation upon the University coming on, in July 1647, he hastened away from Wales to his station there; and though the Earle of Pembroke (who was chiefe in the Action) owned our Principall as his near Kinsman and had a Favour to the College as the naturall Visitor thereof by Charter, and though the Earles Two younger Sons who had lived severall years Commoners in the College under our Principall’s charge, offered him their Service with all Affection possible, yet neither the Propensions of the Earle, nor the Kind offices of his Sons could bring our Principall to fframe himself to any the least evasion, much less to the direct owneing of that Power. Being ejected out of the Headship, which was not actually done by order of the Visitors till the one and twentieth day of May 1648, he Applyed himself to state all Accompts between him and the College; And having delivered the muniments and Goods that belong to it to the hands of the Intruders, he withdrew into Wales and took up his Residence att Llantrythyd, a House of his Kinsman’s, Sir John Auberey’s K^{nt} and Baronett, which house Sequestration having made desolate, while Sir John was in prison for his Adherence to the King, afforded him the Conveniency of a more private retirement and of having severall young Gentlemen of Quality, his Kindred under his eye, while they were taught