154475
His sons are mentioned in 861 as propinqui ( close relatives ) of Adalard the Seneschal , who had served Louis the Pious .
 person: Adalard the Seneschal; person: Louis the Pious
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Adalard the Seneschal, Louis the Pious 
Answer:
 person: Adalard the Seneschal; person: Louis the Pious