Person in charge of the travel arrangements of the king and court, and respective accommodation. See Rita Costa Gomes, The Making of a Court Society: Kings and Nobles in Late Medieval Portugal (Cambridge: Cambridge U.P., 2003), pp. 37-38.
The office of 'alcaide' or governor of a castle included military responsibilities, as he was responsible for its defense. It might also include civil administrative duties which could extend over a province, though not as a rule. Compare with Alcaide-mor. (CW)