Returning to the continent, he became involved in the conflicts of the Council of Basle with the PopeEugene IV; he even supported anti-pope Felix V.
He became involved with the artistic and literary world of Basle, led something of a dissolute life.
In 1442 he abandoned the Council and sought the protection of the Holy Roman Emperor Frederick III at Vienna, Austria.
Secretary to the imperial chancery in January 1443
Imperial poet laureate.
Father of a second illegitimate child in Strasbourg.
In 1445 he travelled to Rome to ask PopeEugene to convoke a new council, and while there reconciled with the legitimate papacy.
He negotiated the reconciliation of the German imperial electors with Pope Eugene which left the anti-pope and the Council with no support.
Pius worked throughout his papacy for Crusade against the Turks, to push them out of Europe, but he could not obtain any commitment from European powers, and it came to nothing.
He established the Knights of Our Lady of Bethlehem as part of the preparations, but it is unclear if there were ever any members.
He moved court for a while to Siena, just because he missed his homeland, but domestic troubles brought him back to Rome.
He tried to mediate in the war between Poland and the Teutonic Knights, and when he failed, he cursed both sides.
He obtained the abolition of the Pragmatic Sanction which limited papal authority in France, but when he did not support FrenchKing Louis XI in his war over Naples, effectively re-established the Sanction.
Pius mediate reconciliation between the emperor and the king of Hungary.
He instituted a commission to reform of the Roman court.
He worked for monastic reform and discipline.
He defended the Church doctrine against the writings of ex-bishop Reginald Peacock, published a papal Bull explaining and renouncing his own errors when working with the Council of Basle, and wrote other historical treatises.
He has left us the only autobiography by a Pope.
Toward the end of his life, Pius felt compelled to personally lead the Crusade against the Turks, and he marched to the staging area of Ancona.
However, the army deserted along the way, and the fevers killed him before he could take other action.
Pii II Commentarii rerum memorabilium, quae temporibus suis contigerunt autobiography
Eurialus and Lucretia
Libellus dialogorum de generalis concilii auctoritate et gestis Basileensium history
Commentarius de rebus Basileae gestis history
Historia rerum Frederici III imperatoris history
Historia Bohemica history