[ULPIANUS libro trigensimo ad Sabinum. ] §10.2.43.prArbitrum familiae erciscundae uel unus petere potest: nam prouocare apud iudicem uel unum heredem posse palam est: igitur et praesentibus ceteris et inuitis poterit uel unus arbitrum poscere.
[ULPIANUS, from the thirtieth book on Sabinus.] Even a single heir can request an arbitrator for the division of an inheritance; for it is clear that even a single heir can initiate proceedings before a judge. Therefore, even if the others are present and unwilling, even a single heir will be able to demand an arbitrator.