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      <p class="heading">Rudolff [Rudolf], Christoff
	        
 <DL class="main_text">
<DT><B>1. Dates</B>
		<DD><I>Born:</I>  fl		
	<DD><I>Died:</I>  --
	<DD><I>Dateinfo:</I> Dates Certain
	<DD><I>Lifespan:</I> 

<DT><B>2. Father</B>
	<DD><I>Occupation:</I>  Unknown
	<DD>No information on financial status.

<DT><B>3. Nationality</B>
	<DD><I>Birth:</I> Jauer, Silesia [now Poland]
	<DD><I>Career:</I> Vienna, Austria
	<DD><I>Death:</I> Vienna, Austria

<DT><B>4. Education</B>
	<DD><I>Schooling:</I> Vienna
	<DD>He learned algebra from Grammateus at the University of Vienna, probably some time between 1517 and 1521.  With information so sketchy, anything is possible, but no degree is mentioned.

<DT><B>5. Religion</B>
	<DD><I>Affiliation:</I> Catholic (assumed).

<DT><B>6. Scientific Disciplines</B>
	<DD><I>Primary:</I>  Mathematics

<DT><B>7. Means of Support</B>
	<DD><I>Primary:</I>  Schoolmastering
	<DD>In Vienna, he supported himself by giving private lessons.  Though not affiliated with the university, he was able to use its library.

<DT><B>8. Patronage</B>
	<DD><I>Type:</I>  Eccesiastic Official
	<DD>He dedicated his Coss (1525) to the Bishop of Brixen (now Bressanone, Italy).

<DT><B>9. Technological Involvement</B>
	<DD><I>Type:</I>  Applied Mathematics
	<DD>His Künstliche Rechnung mit der Ziffer und mit den Zahlpfennigen (1526) contains an "Exempelbüchlein" which contains examples of the use of mathematics in commerce and manufacturing.

<DT><B>10. Scientific Societies</B>
   <DD><I>Memberships:</I> None

<DT><B>Sources</B>
<OL>
	<LI>Cantor, Allgemeine deutsche Biographie, 29, 571-2.</OL>

<!--AUTHOR-->
<DT><I>Compiled by:</I>
	<DD>Richard S. Westfall
	<DD>Department of History and Philosophy of Science
	<DD>Indiana University
</DL>
	  
      <p class="sources"> Note: the creators of the Galileo Project and this catalogue 
        cannot answer email on geneological questions. <!-- #EndEditable --></td>
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