The CDU's Bavarian sister party, the Christian Social Union, pushed her into promising tax cuts.
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The minister is in the conservative Bavarian Christian Social Union (CSU), allied to Chancellor Angela Merkel.
Many of Mr Kohl's old faithful and many members of Bavaria's Christian Social Union back him.
In the outgoing centre-right government, the Bavarian-based Christian Social Union argued that dual citizenship fostered divided loyalty.
The Christian Social Union is a desperately awkward ally for him, but an ally it is nonetheless.
She comes from the Christian Social Union (CSU), the Bavarian wing of the Christian Democratic Union (CDU).
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Theo Waigel, chairman of the Christian Democrats' stroppy Bavarian ally, the Christian Social Union, was also applauded.
He is thankful to have that powerful vote-gathering machine which is the Christian Social Union on his side.
Foreign-policy making is increasingly influenced by younger pragmatists, says Karl-Theodor Freiherr zu Guttenberg, of the Christian Social Union.
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Such ideas bring yelps of disgust from conservative Christian Democrats and their party's Bavarian ally, the Christian Social Union.
The bill is expected to be passed next year in the regional parliament, which is dominated by the Christian Social Union (CSU) party.
Mr Guttenberg is a member of the Christian Social Union (CSU), the Bavarian sister party of Chancellor Angela Merkel's conservative Christian Democrats (CDU).
Yet a lot of that would surely come down to control of budgets, more than high-level constitutional arrangements or assertion of "social union".
The bigger a Christian Social Union victory on September 13th, the better chance Mr Stoiber will have to stop that nightmare coming true.
As Mrs Merkel's star has waned, so that of Edmund Stoiber, leader of the Christian Social Union, the Christian Democrats' Bavarian sister party, has brightened.
As well as trying to cope with the coalition's self-inflicted wounds, the Christian Social Union sees its support being nibbled away from three different directions.
On September 20th his Social Democrats were thrashed in Bavaria's state election, not even winning 20% of the vote against the conservative Christian Social Union's 60%-plus.
It is in part a battle over wording that has so far delayed accord on this issue among the Christian Democrats and the Christian Social Union.
The CDU's roots are in the Catholic church, especially in Germany's south (its Bavarian sister party, the Christian Social Union, or CSU, considers itself a separate Volkspartei).
But opinion polls have suggested he remains popular in Germany, where reports say his Christian Social Union (CSU) party would like him to return to frontline politics.
Loosely organised, they will probably not win seats but may well pull middle-of-the-road voters away from the Christian Social Union, speeding a two-decade decline in its support.
Bavaria's ruling party, the Christian Social Union, credits direct democracy with giving citizens a way to disagree with the government on single issues without voting for the opposition.
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They, and their more right-wing Bavarian counterparts in the Christian Social Union, were doing so to gather signatures for a petition against proposed changes in Germany's nationality laws.
There could even be renewed debate about the whole relationship between church and state, embarrassing in particular the chancellor's Christian Democrats and their strongly Catholic Bavarian partner, the Christian Social Union.
The problem would be how to reconcile the FDP's comprehensive tax overhaul with the rather modest tax-cut plans of the Christian Democrats and their Bavarian sister party, the Christian Social Union.
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But Stefan Mueller, parliamentary leader of the junior coalition party, Christian Social Union, called on Mrs Merkel to go further, by linking development aid to the treatment of Christians in relevant countries.
But she still has a possible rival in the shape of Edmund Stoiber, the leader of the Christian Democrats' Bavarian sister party, the Christian Social Union, who wowed the delegates the next day.
"Until further notice, everything is staying the way it is, " declared Horst Seehofer, head of the Christian Social Union, the Bavarian sister party of Ms. Merkel's Christian Democratic Union, at a party conference last month.
Above all, it would strengthen the hands of powerful rivals in Mr Kohl's own ranks, such as Kurt Biedenkopf, the premier of Saxony, and Edmund Stoiber, the Christian Social Union's premier of Bavaria, both longstanding euro-sceptics.
The main one is that Mr Kohl's sturdiest loyalists, still quite strong in the party, and the Christian Democrats' right-wing Bavarian sister party, the Christian Social Union, fear that Mrs Merkel is too young, inexperienced and left-wing.
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