The 3rd person pronouns of a language are either identical or derivationally related to <i>all</i> demonstratives.
For example, in Axininca Campa, the 3rd person pronouns <i><b>ir</b>irori</i> 'he' and <i><b>ir</b>oori</i> 'she' use the stem <i><b>ir</b>-</i>, which is also found in the demonstratives <i><b>ir</b>ika/<b>ir</b>oka</i> 'm/f proximal,' <i><b>ir</b>inta/<b>ir</b>onta</i> 'm/f medial,' and <i><b>ir</b>intó/<b>ir</b>ontó</i> 'm/f distal.'

<br><br><b>Reference</b><br>
Bhat, D. N. S.. 2008. Third Person Pronouns and Demonstratives.
In Haspelmath et al (2008), chapter 43.
Available online at <a href="http://wals.info/feature/43">
http://wals.info/feature/43</a href>.
