Ku dhammee weedhan soo socota: St. Leger wuxuu si daacad ah ugu adeegay Edward IV awood milatari iyo maamulba sanado badan. Adeeggiisii daacadnimada ahaa, Edward IV wuxuu ku abaal mariyay St. Leger deeq weyn oo ah siddeed manors horaantii 1460-yadii. Wuxuu nasiib u helay in uu cadaalada ka baxsado sanadii 1465 markii loo qabtay dagaal ka dhacay qasriga Westminster waxaana lagu xukumay in gacanta laga jaro. Edward IV, si kastaba ha ahaatee, wuxuu siiyay cafis. Thomas wuxuu u dagaalamay Edward
Dagaalkii Barnet iyo Tewkesbury. St Leger wuxuu door muhiim ah ka ciyaaray joojinta Dagaalkii Boqolka Sano markii uu heshiiskii Picquigny la saxiixday Louis XI 29kii Ogosto 1475. Waxaa la siiyay Louis XI hawlgab dhan 12,000 oo taaj sanadle ah kaas oo loo qeybin lahaa isaga, Thomas Grey, Marquess 1aad ee Dorset, Sir John Howard (dambe Duke of Norfolk), Sir Thomas Montgomery, iyo qaar kale oo ka mid ah maxkamada. Thomas waxaa sidoo kale loo magacaabay xubin ka tirsan Order of the Bath.