Charles the Absolute cut a very strong and steadfast figure, and his realms would reflect that, while other European realms were in war and in chaos Burgundy especially the Burgundian Netherlands were quite peaceful and prosperous. Charles' relationship with his third wife, Margaret of York would describe his internal governance the best. He would never be with his wife often perhaps only visiting his wife and children rarely while he was off campaigning, Margaret would not necessarily mind the coldness as raising three children and governing the realms in his absence would prove to be a momumental task for her, but unlike his father Philip the Good: Charles would not have any illegitimate children respecting his wife. Whether it was a practical move to govern the split realms or merely wishing to stray away from his father's insatiable appetites of the flesh, Charles' relationship with his realms and his family would be cold, distant but in goodwill.
Margaret of York deserves most of the credit for maintaining the realms under Charles but his administrative, and judicial duties should not be understated. In his 5 years of governing Holland, he would develop a habit of being notoriously indecisive but yet firm in his opinions. Philip the Good however seeing this weakness sought to correct it by forcing him to own up to his indecisiveness and he would suffer these mistakes with various sporadic revolts in Holland throughout his tenure as governor. Charles would adopt a stance of cautious but decisive, he would never state his opinion or even form one until his advisors explained to him the situation and their thoughts. This would be perhaps best seen in his conference at Trier in which a policy laid out by his advisors which went for a push to maximalist objectives during the conference would be what Charles adopted throughout the conference, only to compromise to where Philip's position was a decade prior. His judicial and financial reforms would advance the Burgundian state overall, albeit it would definitely ruin his popularity with the urban elites.
His judicial reforms are of particular note, as while he followed his predecessors in establishing a French line of judicial systems, he would do so painstakingly slowly and only through some support from the local nobility. This would culminate in the establishment of the parlement of Malines which superseded all of his French and Imperial courts. This was done incredibly slowly and through Burgundian money and constant rhetoric to the general estates of the Netherlands. This parlement would be considered a greater court of appeals which would be merged along with the counties of Flanders, Artois, Boulogne along with any of the former French fiefs that were freed in 1471. This judicial court would be quite limited in scope as it can hear appeals that mattered with the crown, or with cases the involved joint jurisdiction. His financial reforms which were already underway by his lieutenancy of Philip the Good in uniting the various financial administrations into one larger administration, it would be completed by Charles the Bold at least for his northern territories in a larger chambre des comptes. Only through various bribes, threats and speeches did these reforms succeed and while immensely popular within the populace and the less wealthy. The magnates and incredibly well off merchants were completely against these changes. A mixture of Burgundian propaganda, partisans, and the charm of his son and wife would quell the rebellions against Charles throughout 1469-1473.
The estates general of the Netherlands would be transformed into the estates general of Burgundy in 1470, with deputies from the two Burgundies partaking in the estates as soon as possible. His reforms on centralization would prove most beneficial in the summons of 1473 where shortages of corn exports in Flanders occurred, Charles' centralizing reforms gave him enough power to fix the issue on hand with his famous ordinances. Local age old privileges were disregarded in favour of standardization and centralization throughout the realms, his popularity would fluctuate generally amongst Burgundy but the privelged old elite would still despise his efforts and mount any resistance against the reforms which he throughly crushed.
His ecclesiastical reforms would not be as successful however did lay the groundwork for Philip's archdiocese reforms. Charles would appoint Hue de Lannoy to the archbishopric of Bescanon who was appointed through painstaking negotiation with the city, the emperor and the pope. The weakening of Liege, Cambrai, Utrecht, later on Verdun, Metz, Toul and Strasbourg by the power of the newly appointed archbishop would slowly begin as Burgundy continued to press for a cardinal for Burgundy. All of these reforms would lay groundwork much like his predecessors and would only be completed by Philip the Rich.
Philip the Rich, heir apparent to the Burgundian state would be Charles' greatest success although it would be more accurate to portray his education as a result of Isabella of Bourbon and later Margaret of York's education. Isabella would reside in Holland throughout Charles' time as stadholder and the time there would teach Philip to not necessarily be too enjoyed in the illustrious court of Burgundy at the time but instead to speak to the larger populace and enjoy the sights of the bustling medieval city of Amsterdam at the time, Isabella smartly only spoke to Philip in Dutch who would pick up the language quickly and later on would teach him French as that was the other language in the court of Charles the Absolute. Margaret of York would arrive to a studied and learned Philip the Rich and would further increase his education, by teaching him English, Latin and later on with great difficulty German. Under Margaret, Philip would observe the court life under Charles the Absolute which Margaret would run. Margaret would also insist that Philip stay by her side when she was conducting administration. As a result of being molded almost entirely by Margaret, when Anne of Champagne arrived Philip was the ideal prince speaking to her in fluent French and touring the lands of the Burgundian Netherlands with her. Margaret would not prioritize Philip however and began to tutor Anne as well, who was a natural talent at governance, finance and administration much to Margaret's joy. Charles in 1473 would reenter his son's life and begin teaching him Italian which Charles' had a passion and love for. Most importantly Charles would try to teach Philip public speaking as that was a key tool for any aspiring duke, and Philip would surpass Charles in this aspect much to Charles' joy. Due to Philip's study in law, finance, administration from Margaret, Philip would not speak with as much passion and emotion compared to his father but he was far more successful in convincing people that their interests were taken care of under Philip who would use a mixture of conflicting laws, incentives and plain logic to win over the people. Charles' education for Philip however, would be mostly focused on martial skill.
Charles' main achievements were his reforms in the Burgundian army in theory a professional standing army. In practice this army was riddled with flaws throughout his reign and only due to Charles' insistence did this standing army would be able to provide Charles his long awaited battlefield victory at the end of his reign. Throughout his reforms an underlying theme of harsh discipline was given to Burgundian armies who were elaborately organized and armed richly and to the teeth. The two minor victories in Brustem and Montlhery would ingrain with Charles, patience when it came to battles and the importance of artillery and infantry. His vanguard was routed both times, but it would be English archers and Burgundian artillery that would save him. Charles realized the usage of the smoke from a salvo dedicated to a specific spot was incredibly powerful as a tool to distract and obscure his opponent. His son, Philip would be taught this as well. These minor victories combined with the losses in Dijon, and witnessing the victories of the English and importantly the armies of Swiss would teach him to fully use his armies. The prevalence of Burgundian infantry would be shown by Philip the Rich during the wars of Constance, as Burgundy would develop their own two tiered infantry. Light mobile infantry as a vanguard, which was considered highly disciplined by Charles while his heavy infantry would be inspired by English archers, French crossbowmen and field artillery. This incredibly modern army would be both very quick and yet incredibly slow. Often times Burgundy would arrive at the battlefield with their light infantry and buy time to let the other half of Burgundian arms to set up in order to crush any army on the field.
Charles' usage of military governorships and posts was quite modern and instrumental to the creation of a Burgundian standing army. Charles would create various military offices separate from civilian ones which had no authority other than law enforcement, while Burgundian finances for this standing army would come from the general estates of Burgundy, Charles would insist on military academies in order to train them lightly in their respective role within their unit, while permanent training would be done within Charles' military camps, Burgundian soldiers would start off with some basic training within their local states. Burgundian military governors would also be responsible for training their local security forces which were under the direct oversight by the governor himself and indirectly under the local estates. This would provide another centralizing tenet of his reforms as Burgundian recruitment would be placed out of the estates but affirmed or gave the privilege for internal security to the estates.
Burgundy at the time was fighting for its life against France as every day nobles and people switched sides for their allegiance however what was crucial here was Charles was incredibly good at removing such "traitors" to his realm, the complete destruction and servitude of the Croy family, and the replacements of the various council members under Philip the Good, finally the removal of Louis of Saint-Pol would be the most famous of these "purges". Burgundian diplomacy especially in this era was very fluid much like Europe was at the time, however what Charles could count on was the allegiance of the counts of Cleves, and Julich-Berg both of which were de facto Burgundian vassals. The trustworthiness of allies such as England, Scotland, Denmark, Venice, Savoy and Milan were all questioned especially in the resubjugation war of 1475. Historians would love to say Burgundy's slow expansion eastward was gradual and calculated, it was not. Burgundian foreign policy except their resentment towards France was always changing and completely fluid, this can especially be seen in Charles' interactions with the emperor. It would not be Burgundian foreign policy that was the stable thing in Charles' life but instead Charles' administrative capabilities or more accurately Margarets'.