EP Register
Back to register

Profile

ID 257080

PolandPolandActive member

Piotr MÜLLER

ECREuropean Conservatives and Reformists
Prawo i Sprawiedliwość

Tracked since 28/10/2024

Total assistants

12

Currently active

8

Total departed

4

Departed share

33.3%

4 of 12

Office over time

12 own staff since we started watching

One bar per person, from the day we first saw them to the day they left — or until today. A faded left edge means they were already in place on 28/10/2024; a faded right edge means they left at an unknown date before 03/03/2026.

Jan 25Apr 25Jul 25Oct 25Jan 26Apr 26Jul 26Oct 26Karol Krzysztof RZĘSIEWICZMarta MICHALSKAMateusz Patryk MROZEKPiotr Pawel STOLARCZYKRafal GRABOWSKISamanta NOWINSKASylwester OWŚNICKIAdam TREDERTomasz KLONOWSKIBlanka KIESZMaria MAZUR-SZCZEPANSKAJan WDOWIK
Accredited assistantsLocal assistantsPaying agentsTraineesin postdepartedfaded edge = start or end not known to the day
Office timeline
NameCategoryFromTo
Karol Krzysztof RZĘSIEWICZAccredited assistantstracked since 28/10/2024in post
Marta MICHALSKAAccredited assistantstracked since 28/10/2024in post
Mateusz Patryk MROZEKLocal assistantstracked since 28/10/2024left before Mar 2026
Piotr Pawel STOLARCZYKLocal assistantstracked since 28/10/2024in post
Rafal GRABOWSKILocal assistantstracked since 28/10/2024in post
Samanta NOWINSKALocal assistantstracked since 28/10/2024in post
Sylwester OWŚNICKILocal assistantstracked since 28/10/2024in post
Adam TREDERLocal assistants15/11/2024left before Mar 2026
Tomasz KLONOWSKILocal assistants17/11/2024in post
Blanka KIESZLocal assistants28/01/202601/05/2026
Maria MAZUR-SZCZEPANSKAPaying agentstracked since 28/10/2024in post
Jan WDOWIKTrainees01/12/2024left before Mar 2026

Departed share comparison

Share of observed own staff who have since left (since 28 Oct 2024).

This Member33.3%
EP average30.2%
Poland27.5%
European Conservatives and Reformists Group32.9%

By category

CategoryOwn activeOwn departedOwn totalPool activePool total
Local assistants53800
Accredited assistants20200
Paying agents10100
Trainees01100

Active assistants · 8

NameCategorySince
Marta MICHALSKAAccredited assistants28/10/2024
Karol Krzysztof RZĘSIEWICZAccredited assistants28/10/2024
Rafal GRABOWSKILocal assistants28/10/2024
Samanta NOWINSKALocal assistants28/10/2024
Sylwester OWŚNICKILocal assistants28/10/2024
Piotr Pawel STOLARCZYKLocal assistants28/10/2024
Tomasz KLONOWSKILocal assistants17/11/2024
Maria MAZUR-SZCZEPANSKAPaying agents28/10/2024

Office size

Own staff in post per month. Dashed before 03/03/2026: reconstructed from arrivals only. The dashed horizontal line is the median office in the Parliament (5).

Own staff of Piotr MÜLLER per month
MonthCountEstimated
2024-118yes
2024-128yes
2025-018yes
2025-028yes
2025-038yes
2025-048yes
2025-058yes
2025-068yes
2025-078yes
2025-088yes
2025-098yes
2025-108yes
2025-118yes
2025-128yes
2026-019yes
2026-029yes
2026-039no
2026-049no
2026-058no
2026-068no
2026-078no
2026-088no
2026-098no
2026-108no

How long staff stayed

Tenure of staff whose departure is dated. Contracts that ended before 03/03/2026 have no known length and are not shown.

06 mo12 mo18 mo24 moEP median

1 dated departure · office median 4 mo · Parliament median 16 mo

Tenure of departed staff, months
Blanka KIESZ4

Former assistants · 4

NameCategoryFromToDuration
Blanka KIESZLocal assistants28/01/202601/05/20264m
Mateusz Patryk MROZEKLocal assistants28/10/2024left before Mar 2026—
Adam TREDERLocal assistants15/11/2024left before Mar 2026—
Jan WDOWIKTrainees01/12/2024left before Mar 2026—

Our record of the register begins 28/10/2024. "Tracked since" marks a person who was already in place on that day — their actual start date is earlier and is not published to us. Read about the data →